{"title":"Gravity \u0026 Multi-Stage Pond Filters","description":"\u003cp\u003eGravity and multi-stage filters move water through separate mechanical and biological chambers. Ideal for koi ponds plumbed with bottom drains.\u003c\/p\u003e","products":[{"product_id":"teton-xk-filters","title":"Teton XK Filters","description":"\u003cdiv class=\"jps\"\u003e\n\u003cstyle\u003e.jps{--card:#F3F5F8;--ink:#15202B;--inks:#4B5763;--indigo:#13314A;--indigod:#0F2233;--koi:#F26A21;--line:#D7DEE6;font-family:'Inter',system-ui,sans-serif;color:var(--ink);line-height:1.65;max-width:1180px;margin:0 auto}.jps h2,.jps h3,.jps .serif{font-family:'Shippori Mincho',Georgia,serif;font-weight:600}.jps .ey{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--koi);font-weight:700}.jps .lead{font-size:18px;color:var(--inks);max-width:62ch}.jps .band{background:linear-gradient(180deg,#E3EAF1,#CDD9E4);border-radius:16px;padding:30px 34px;margin:0 0 16px}.jps .band h2{font-size:30px;margin:6px 0 10px;color:var(--indigod)}.jps .trust{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:13px 20px;margin:0 0 24px}.jps .trust span{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--ink)}.jps .trust svg{width:18px;height:18px;color:var(--koi);flex:none}.jps .feat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0}@media(max-width:560px){.jps .feat{grid-template-columns:1fr}}.jps .fc{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}.jps .fc svg{width:30px;height:30px;color:var(--koi);display:block;margin-bottom:10px}.jps .fc h3{font-size:16px;margin:0 0 5px;color:var(--indigo)}.jps .fc p{font-size:14px;color:var(--inks);margin:0}.jps .specwrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:12px 0}.jps table.spec{width:100%;border-collapse:collapse;min-width:560px;font-size:14px}.jps table.spec th{background:var(--indigo);color:#fff;font-family:'Shippori Mincho',serif;font-weight:600;text-align:left;padding:10px 12px;font-size:12.5px}.jps table.spec td{border-top:1px solid var(--line);padding:9px 12px;color:var(--inks)}.jps table.spec td:first-child{font-weight:700;color:var(--indigo)}.jps h2.sec{font-size:23px;color:var(--indigo);margin:18px 0 10px}.jps .brand{background:var(--indigod);color:#E3EBF2;border-radius:16px;padding:26px 30px;margin:26px 0 6px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.jps .brand h3{color:#fff;font-size:21px;margin:0 0 4px}.jps .brand p{margin:0;color:#B9C6D2;font-size:15px}.jps .brand a{display:inline-block;background:var(--koi);color:#fff;text-decoration:none;font-weight:600;font-size:14px;padding:11px 20px;border-radius:40px;white-space:nowrap}.jps .note{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--koi);border-radius:10px;padding:14px 18px;font-size:14.5px;margin:16px 0 0}\u003c\/style\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cspan class=\"ey\"\u003eTeton · XKF Series\u003c\/span\u003e\u003ch2\u003eProfessional koi pond pressure filter\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eThe Teton XKF is a back-flush bead pressure filter built for serious koi ponds — combining mechanical and biological filtration in one pressurized vessel with semi-floating bead media and an easy multi-port valve. Rated for ponds from 2,500 to 9,000 gallons and heavy fish loads, and pressurized so it can return uphill to a waterfall.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M20 6 9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003eIn stock — ships from Southern California\u003c\/span\u003e\u003cspan\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3l7 3v5c0 4.5-3 7.6-7 9-4-1.4-7-4.5-7-9V6l7-3Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003eHeavy-duty pressure vessel\u003c\/span\u003e\u003cspan\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M14 7a4 4 0 0 0-5.5 5.5L3 18l3 3 5.5-5.5A4 4 0 0 0 17 10\"\u003e\u003c\/path\u003e\u003c\/svg\u003eAuthorized Teton dealer — sales \u0026amp; service\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat\"\u003e\n\u003cdiv class=\"fc\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M5 4h14l-2 5v8a2 2 0 0 1-2 2H9a2 2 0 0 1-2-2V9z\"\u003e\u003c\/path\u003e\u003cpath d=\"M7 9h10\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003ch3\u003eMechanical + biological\u003c\/h3\u003e\n\u003cp\u003eSemi-floating bead media traps solids and grows beneficial bacteria in one vessel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fc\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 8v8M8 12h8\"\u003e\u003c\/path\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"9\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003ch3\u003eEasy back-flush\u003c\/h3\u003e\n\u003cp\u003eMulti-port valve lets you back-flush waste out in seconds — no media to haul.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fc\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 3l7 3v5c0 4.5-3 7.6-7 9-4-1.4-7-4.5-7-9V6l7-3Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003ch3\u003eHeavy fish loads\u003c\/h3\u003e\n\u003cp\u003eSized for koi ponds carrying 100–350 lb of fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fc\"\u003e\n\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M3 17l5-5 4 3 8-8\"\u003e\u003c\/path\u003e\u003cpath d=\"M16 7h4v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003ch3\u003ePressurized return\u003c\/h3\u003e\n\u003cp\u003ePushes filtered water uphill to waterfalls and elevated returns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"sec\"\u003eSpecifications by model\u003c\/h2\u003e\n\u003cdiv class=\"specwrap\"\u003e\u003ctable class=\"spec\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eMax Flow\u003c\/th\u003e\n\u003cth\u003eRated Pond\u003c\/th\u003e\n\u003cth\u003eFish Load\u003c\/th\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003cth\u003eTank (Ø × H)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXKF2500\u003c\/td\u003e\n\u003ctd\u003e4,200 GPH\u003c\/td\u003e\n\u003ctd\u003e2,500 gal\u003c\/td\u003e\n\u003ctd\u003e100 lb\u003c\/td\u003e\n\u003ctd\u003e1.4 cu ft\u003c\/td\u003e\n\u003ctd\u003e16\" × 32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXKF6500\u003c\/td\u003e\n\u003ctd\u003e5,400 GPH\u003c\/td\u003e\n\u003ctd\u003e6,500 gal\u003c\/td\u003e\n\u003ctd\u003e200 lb\u003c\/td\u003e\n\u003ctd\u003e2.5 cu ft\u003c\/td\u003e\n\u003ctd\u003e20\" × 34\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXKF9000\u003c\/td\u003e\n\u003ctd\u003e7,200 GPH\u003c\/td\u003e\n\u003ctd\u003e9,000 gal\u003c\/td\u003e\n\u003ctd\u003e350 lb\u003c\/td\u003e\n\u003ctd\u003e3.75 cu ft\u003c\/td\u003e\n\u003ctd\u003e24\" × 43\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003ePair with a Teton XPF or XR pump and a Pro UV clarifier for a complete koi filtration system. Rated-pond figures assume typical koi stocking — size down for very heavy loads.\u003c\/div\u003e\n\u003cdiv class=\"brand\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eTeton — built for continuous duty\u003c\/h3\u003e\n\u003cp\u003eProfessional pond pumps, filtration and UV. Sold and serviced by Mystic Koi, an authorized Teton dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca href=\"\/collections\/teton\"\u003eShop all Teton →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Teton","offers":[{"title":"2500","offer_id":47386377814165,"sku":"XKF2500","price":1249.98,"currency_code":"USD","in_stock":true},{"title":"6500","offer_id":47386377846933,"sku":"XKF6500","price":1949.98,"currency_code":"USD","in_stock":false},{"title":"9000","offer_id":47469182910613,"sku":"XKF9000","price":2749.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/4961\/9245\/files\/XKF-SERIES-PROFESSIONAL-POND-KOI-FILTER-XKF2500_XKF4200-1024x1024.png?v=1779826071"},{"product_id":"matala-biosteps-pond-filter","title":"Matala BioSteps Pond Filter","description":"\u003cdiv class=\"mtp\"\u003e\n\u003cstyle\u003e.mtp{--teal:#0E7C93;--teal-d:#0A5E70;--green:#5AA642;--ink:#16323B;--inks:#4C636C;--muted:#7E919A;--wash:#F4F8FA;--card:#fff;--line:#E2EBEF;font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--ink);line-height:1.65;max-width:1180px;margin:0 auto}.mtp h2,.mtp h3{font-weight:800;letter-spacing:-.01em}.mtp .ey{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--teal);font-weight:700}.mtp .lead{font-size:18px;color:var(--inks);max-width:62ch}.mtp .band{background:linear-gradient(135deg,#0A5E70,#0E7C93 45%,#3E8F5A);border-radius:18px;padding:34px 36px;margin:0 0 16px;color:#fff}.mtp .band .ey{color:#BFEAD3}.mtp .band h2{font-size:30px;margin:8px 0 12px;color:#fff}.mtp .band .lead{color:#E6F4F7}.mtp .trust{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:13px 20px;margin:0 0 24px}.mtp .trust span{font-size:13.5px;font-weight:600}.mtp .feat{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:24px 0}.mtp .fc{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}.mtp .fc h3{font-size:16px;margin:0 0 5px;color:var(--teal-d)}.mtp .fc p{font-size:14px;color:var(--inks);margin:0}.mtp .two{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;margin:26px 0;align-items:start}@media(max-width:720px){.mtp .two{grid-template-columns:1fr}}.mtp h2.sec{font-size:23px;color:var(--teal-d);margin:6px 0 12px}.mtp table.ga{width:100%;border-collapse:collapse;margin:10px 0 4px;font-size:14px}.mtp table.ga th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-bottom:2px solid var(--line);padding:8px 6px}.mtp table.ga td{border-bottom:1px solid var(--line);padding:9px 6px;vertical-align:top}.mtp table.ga td:first-child{font-weight:700;white-space:nowrap}.mtp .note{background:var(--wash);border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:10px;padding:14px 18px;font-size:14.5px;margin:16px 0 0}.mtp .parts{display:flex;gap:12px;align-items:flex-start;background:var(--wash);border:1px solid var(--line);border-radius:10px;padding:14px 18px;font-size:14px;margin:14px 0 0}.mtp .chips{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 6px}.mtp .chip{background:var(--wash);border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:13px;color:var(--inks)}.mtp .brand{background:linear-gradient(120deg,#10384A,#0E7C93);color:#DCEEF2;border-radius:16px;padding:26px 30px;margin:26px 0 6px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.mtp .brand h3{color:#fff;font-size:21px;margin:0 0 4px}.mtp .brand p{margin:0;color:#CFE4E9;font-size:15px}.mtp .brand a{display:inline-block;background:#fff;color:var(--teal-d);text-decoration:none;font-weight:700;font-size:14px;padding:11px 22px;border-radius:40px;white-space:nowrap}.mtp a.more{color:var(--teal);font-weight:700;text-decoration:none}\u003c\/style\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cspan class=\"ey\"\u003eMatala · Pond Filter\u003c\/span\u003e\u003ch2\u003eBioSteps Pond Filter \u0026amp; Kits\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eA multi-stage, gravity-return filter built around six Matala pads in progressive densities. Buy the filter on its own, or a complete all-in-one kit with the pump, pre-filter, hose and optional UV and waterfall — matched and ready to run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003eIn stock — ships from Southern California\u003c\/span\u003e\u003cspan\u003e6 Matala progressive pads\u003c\/span\u003e\u003cspan\u003eUp to 2,000 gal \/ 1,000 koi\u003c\/span\u003e\u003cspan\u003eAuthorized Matala retailer\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat\"\u003e\n\u003cdiv class=\"fc\"\u003e\n\u003ch3\u003eProgressive filtration\u003c\/h3\u003e\n\u003cp\u003eGreen, blue \u0026amp; gray pads in sequence trap solids then polish \u0026amp; host bacteria.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fc\"\u003e\n\u003ch3\u003eEasy maintenance\u003c\/h3\u003e\n\u003cp\u003eSloped bottom with a drain for quick backwashing. Cross-flow resists clogging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fc\"\u003e\n\u003ch3\u003eAll-in-one option\u003c\/h3\u003e\n\u003cp\u003eKits include pump, EZ-Bio pre-filter, hose, and optional UV \u0026amp; waterfall.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"two\"\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"sec\"\u003eChoose your configuration\u003c\/h2\u003e\n\u003ctable class=\"ga\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eWhat's included\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Only\u003c\/td\u003e\n\u003ctd\u003eBioSteps II filter + 6 Matala pads, lid \u0026amp; fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter + Waterfall\u003c\/td\u003e\n\u003ctd\u003eAdds the waterfall spillway outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlus Kit\u003c\/td\u003e\n\u003ctd\u003eFilter + MagnaFlow 1100 pump + EZ-Bio 11 pre-filter + 25 ft hose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlus + Waterfall\u003c\/td\u003e\n\u003ctd\u003ePlus kit + waterfall spillway\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePro Kit\u003c\/td\u003e\n\u003ctd\u003ePlus kit + 16W EzClear UV clarifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePremium\u003c\/td\u003e\n\u003ctd\u003ePlus kit + waterfall + 16W EzClear UV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:12.5px;color:var(--muted);margin:6px 0 0\"\u003eFlow 800-900 GPH · inlet barb 3\/4-1.5\" · outlet 1.5\/2\" · tank 20 x 15 x 23 in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"sec\"\u003eSizing\u003c\/h2\u003e\n\u003cp style=\"font-size:15px;margin:0 0 10px\"\u003eRated for water-garden ponds up to \u003cstrong\u003e2,000 gallons\u003c\/strong\u003e or koi ponds up to \u003cstrong\u003e1,000 gallons\u003c\/strong\u003e. Koi are heavy waste producers, so the koi rating is about half.\u003c\/p\u003e\n\u003cdiv class=\"parts\"\u003e\u003cdiv\u003e\n\u003cstrong\u003eService \u0026amp; spares.\u003c\/strong\u003e Replacement pads, bodies, fittings \u0026amp; waterfall parts. \u003ca class=\"more\" href=\"\/products\/matala-biosteps-replacement-parts\"\u003eShop BioSteps Parts →\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chips\"\u003e\n\u003cspan class=\"chip\"\u003eGravity return\u003c\/span\u003e\u003cspan class=\"chip\"\u003eBottom drain\u003c\/span\u003e\u003cspan class=\"chip\"\u003eCross-flow design\u003c\/span\u003e\u003cspan class=\"chip\"\u003eUV-ready\u003c\/span\u003e\u003cspan class=\"chip\"\u003eWaterfall option\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"brand\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eThink Progressive · Think Matala\u003c\/h3\u003e\n\u003cp\u003eComplete kits are in our Pond Kits collection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca href=\"\/collections\/complete-pond-kits\"\u003eShop Complete Kits →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Matala","offers":[{"title":"Filter Only","offer_id":47503109718165,"sku":"BSTPII","price":220.0,"currency_code":"USD","in_stock":true},{"title":"Filter + Waterfall","offer_id":47503109750933,"sku":"BSTPII-WF","price":258.0,"currency_code":"USD","in_stock":true},{"title":"Plus Kit","offer_id":47503109783701,"sku":"BSTP-PLUS","price":365.0,"currency_code":"USD","in_stock":false},{"title":"Plus Kit + Waterfall","offer_id":47503109816469,"sku":"BSTP-PLUS-WF","price":400.0,"currency_code":"USD","in_stock":true},{"title":"Pro Kit","offer_id":47503109849237,"sku":"BSTP-PRO","price":535.0,"currency_code":"USD","in_stock":true},{"title":"Premium Kit","offer_id":47503109882005,"sku":"BSTP-PREMIUM","price":567.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/4961\/9245\/files\/biostep_d9005009-c484-437e-89da-4fd48c21d1f5.jpg?v=1782667483"},{"product_id":"gc-tek-biomotion-bioverter","title":"GC Tek BioMotion BioVerter Fluidized-Bed Filter","description":"\u003cstyle\u003e\n.gct{--ink:#e7ecf1;--mut:#9fb0bf;--bg:#111417;--bg2:#1a1f24;--line:#2b333b;--aq:#22c1dc;--or:#ff7a1a;--ok:#3ddc97;font-family:Inter,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);border-radius:18px;padding:28px 26px;line-height:1.55}\n.gct *{box-sizing:border-box}.gct\u003e*{margin-top:0!important}.gct h2,.gct h3{font-family:'Barlow Condensed','Saira Condensed',Inter,sans-serif!important;text-transform:none!important;letter-spacing:.01em;color:#fff!important;line-height:1.1;margin:0}\n.gct h2{font-size:32px;font-weight:700}.gct h3{font-size:20px;font-weight:700}.gct p{margin:0 0 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26px;align-items:stretch;grid-auto-rows:1fr}.gct .feat\u003e*{margin-top:0!important}.gct .feat div{background:var(--bg2);border:1px solid var(--line);border-top:3px solid var(--aq);border-radius:12px;padding:16px}.gct .feat h3{font-size:18px;margin:0 0 6px}.gct .feat p{font-size:14px;color:var(--mut);margin:0}\n.gct .sec{margin:0 0 12px;padding-top:6px}.gct .tbl{overflow-x:auto;margin:0 0 26px;border:1px solid var(--line);border-radius:12px}.gct table{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}.gct th{background:#0c1e24;color:var(--aq);text-align:left;padding:10px 12px;font-weight:700;font-size:12px;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--line)}\n.gct td{padding:10px 12px;border-bottom:1px solid var(--line);color:var(--ink)}.gct tr:last-child td{border-bottom:0}.gct td:first-child{font-weight:700;color:#fff;white-space:nowrap}\n.gct .note{background:var(--bg2);border:1px solid var(--line);border-left:4px solid 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.brand{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:18px;margin-top:6px}.gct .brand p{margin:0;font-size:13px;color:var(--mut)}.gct .brand b{color:#fff}.gct .brand .tag{color:var(--aq);font-family:'Barlow Condensed','Saira Condensed',sans-serif;font-size:22px;font-weight:700}\n@media(max-width:860px){.gct .feat{grid-template-columns:repeat(2,1fr)}.gct .trust{grid-template-columns:1fr}.gct .two{grid-template-columns:1fr}.gct h2{font-size:26px}.gct{padding:20px 16px}}\n\u003c\/style\u003e\u003cdiv class=\"gct\"\u003e\n\u003cdiv class=\"bto\"\u003e\n\u003csvg width=\"26\" height=\"26\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffb070\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M3 7h11v9H3zM14 10h4l3 3v3h-7z\"\u003e\u003c\/path\u003e\u003ccircle cx=\"7\" cy=\"18\" r=\"2\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"17\" cy=\"18\" r=\"2\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003cdiv\u003e\n\u003cb\u003eBuilt to order · ships in about 3 weeks · freight delivery\u003c\/b\u003e\u003cp\u003eGC Tek assembles this unit at the factory after you order — allow roughly 3 weeks before it ships. It travels by LTL freight; \u003cstrong\u003eno freight is charged at checkout\u003c\/strong\u003e. We quote the freight to your address and confirm it with you before anything ships. Local pickup in Upland, CA is always free.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"eyebrow\"\u003eGC Tek BioMotion BioVerter · fluidized-bed biological filter · 1.5 to 8 cu ft\u003c\/p\u003e\n\u003ch2\u003eAdd biological capacity without adding a pump\u003c\/h2\u003e\n\u003cp class=\"lede\"\u003eA fluidized bed is the most efficient biological converter there is — media in constant motion, every surface scrubbed and fed, no dead spots. Most fluidized beds need gravity or a dedicated air supply to move the bed. The BioMotion doesn't: \u003cb\u003ethe flow from your existing filter system fluidizes it\u003c\/b\u003e. The media is barely heavier than water, so it sinks when the flow stops and even a 1\/8 HP pump's output is enough to raise and fluff the bed. Add one to a new GC Tek system at time of order, or drop it into an existing pond to raise biological carrying capacity when your fish load has outgrown the filter.\u003c\/p\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eAuthorized GC Tek dealer\u003c\/b\u003eGenuine product, factory warranty, distributor-direct.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWarranty \u0026amp; support handled here\u003c\/b\u003eWe set up, troubleshoot and handle warranty claims in-house.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eFreight confirmed before it ships\u003c\/b\u003eYou approve the freight quote first — no surprises at the door.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eNo extra pump or blower\u003c\/h3\u003e\n\u003cp\u003eFluidized by the flow you already have — even 1\/8 HP is enough.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSelf-cleaning bed\u003c\/h3\u003e\n\u003cp\u003eConstant motion keeps the biofilm young and the surface area open.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSoluble waste\u003c\/h3\u003e\n\u003cp\u003eTargets the dissolved ammonia and nitrite a mechanical filter can't touch.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRetrofit friendly\u003c\/h3\u003e\n\u003cp\u003eAdd to a PLUS \/ PLUS PRO at order time, or plumb into an existing system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tbl\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003cth\u003eTank (dia x H)\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBioM1.5\u003c\/td\u003e\n\u003ctd\u003e1.5 cu ft\u003c\/td\u003e\n\u003ctd\u003e19\" x 31\"\u003c\/td\u003e\n\u003ctd\u003e$1,644.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBioM2.25\u003c\/td\u003e\n\u003ctd\u003e2.25 cu ft\u003c\/td\u003e\n\u003ctd\u003e21\" x 34.5\"\u003c\/td\u003e\n\u003ctd\u003e$1,879.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBioM3.75\u003c\/td\u003e\n\u003ctd\u003e3.75 cu ft\u003c\/td\u003e\n\u003ctd\u003e24.5\" x 35.5\"\u003c\/td\u003e\n\u003ctd\u003e$2,214.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBioM5.5\u003c\/td\u003e\n\u003ctd\u003e5.5 cu ft\u003c\/td\u003e\n\u003ctd\u003e30.4\" x 40\"\u003c\/td\u003e\n\u003ctd\u003e$2,684.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBioM8.0\u003c\/td\u003e\n\u003ctd\u003e8.0 cu ft\u003c\/td\u003e\n\u003ctd\u003e36.4\" x 45\"\u003c\/td\u003e\n\u003ctd\u003e$3,579.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003eBioMotion media looks like the AlphaONE open-cell media but is \u003cb\u003eblack and sinking\u003c\/b\u003e. Pair a BioMotion with a NishikigoiRDF drum or an AlphaONE and you have mechanical, biological and fluidized-bed conversion in one loop — GC Tek calls it the ultimate waste treatment system for a pond.\u003c\/div\u003e\n\u003cdiv class=\"links\"\u003e\n\u003ca href=\"\/products\/gc-tek-pressure-filters\"\u003ePressure filters\u003c\/a\u003e\u003ca href=\"\/products\/gc-tek-nishikigoi-rdf-drum-filter\"\u003eNishikigoiRDF drum filters\u003c\/a\u003e\u003ca href=\"\/products\/gc-tek-wattmizer-plus-pro-system\"\u003eWattMizer PLUS PRO systems\u003c\/a\u003e\u003ca href=\"\/pages\/gctek\"\u003eAll GC Tek\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"sec\"\u003eOrdering \u0026amp; delivery\u003c\/h3\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eHow long until it ships?\u003c\/summary\u003e\u003cp\u003eMost GC Tek filters and systems are assembled to order in Chandler, Oklahoma. Typical lead time is about 3 weeks from order to ship, then transit time. Parts and media we stock ship from Upland, CA within a day or two.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhy no freight at checkout?\u003c\/summary\u003e\u003cp\u003eFreight for a pressure filter or pre-plumbed system depends on your address, liftgate needs and residential vs. commercial delivery. Charging a flat guess would overcharge some customers and undercharge others, so we quote it to the dollar and confirm with you before shipping.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I pick it up instead?\u003c\/summary\u003e\u003cp\u003eYes — pick up free at Mystic Koi \u0026amp; Water Gardens in Upland, CA. Choose local pickup at checkout or tell us in the order notes and we'll skip freight entirely.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWho handles the warranty?\u003c\/summary\u003e\u003cp\u003eWe do. As an authorized GC Tek dealer we process warranty and parts through the factory for you — no shipping the tank back across the country.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"brand\"\u003e\n\u003cp\u003e\u003cspan class=\"tag\"\u003eGC Tek\u003c\/span\u003e\u003cbr\u003eGrand Champion Technologies · Chandler, Oklahoma · pond filtration built in the USA\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMystic Koi \u0026amp; Water Gardens\u003c\/b\u003e — authorized GC Tek dealer, Upland, California.\u003cbr\u003eQuestions on sizing? Call the shop and talk to someone who runs these filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"GC Tek","offers":[{"title":"1.5 cu ft — 19\" x 31\"","offer_id":48002887221397,"sku":"BioM1.5","price":1644.95,"currency_code":"USD","in_stock":true},{"title":"2.25 cu ft — 21\" x 34.5\"","offer_id":48002887254165,"sku":"BioM2.25","price":1879.95,"currency_code":"USD","in_stock":true},{"title":"3.75 cu ft — 24.5\" x 35.5\"","offer_id":48002887286933,"sku":"BioM3.75","price":2214.95,"currency_code":"USD","in_stock":true},{"title":"5.5 cu ft — 30.4\" x 40\"","offer_id":48002887319701,"sku":"BioM5.5","price":2684.95,"currency_code":"USD","in_stock":true},{"title":"8.0 cu ft — 36.4\" x 45\"","offer_id":48002887352469,"sku":"BioM8.0","price":3579.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/4961\/9245\/files\/biomotion-media_1786324376.webp?v=1789487880"}],"url":"https:\/\/mystickoi.com\/collections\/gravity-pond-filters.oembed","provider":"Mystic Koi \u0026 Water Gardens","version":"1.0","type":"link"}