{"title":"GC Tek Prefilters","description":"\u003cp\u003eAquaSieve2, AquaSieve 3.3 SS and MultiCyclone 50 solids separators.\u003c\/p\u003e","products":[{"product_id":"aqua-sieve-2-pond-strainer","title":"GC Tek AquaSieve Solids-Separator Prefilter","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 12px;color:var(--ink)}.gct .eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--aq);font-weight:700;margin:0 0 8px}\n.gct .lede{font-size:17px;color:var(--mut);max-width:70ch}.gct .bto{display:flex;gap:14px;align-items:flex-start;background:#2a1b0e;border:1px solid #6b3a12;border-left:5px solid var(--or);border-radius:12px;padding:14px 16px;margin:0 0 22px}\n.gct .bto b{color:#ffb070;display:block;font-size:14px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:3px}.gct .bto p{margin:0;color:#f3e5d8;font-size:14px}.gct .bto svg{flex:0 0 26px;margin-top:2px}\n.gct .trust{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0 26px}.gct .trust div{background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:13px;color:var(--mut)}.gct .trust div b{display:block;color:#fff;font-size:14px;margin-bottom:2px}\n.gct .feat{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 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 var(--aq);border-radius:10px;padding:14px 16px;margin:0 0 26px;font-size:14px;color:var(--mut)}.gct .note b{color:#fff}.gct .note.warn{border-left-color:var(--or)}\n.gct .two{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0 0 26px}.gct .two\u003e*{margin-top:0!important}.gct .box{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:16px}.gct .box h3{margin:0 0 8px}.gct ul{margin:0;padding-left:18px;color:var(--mut);font-size:14px}.gct li{margin:0 0 6px}.gct li b{color:#fff}\n.gct .faq details{border-bottom:1px solid var(--line);padding:10px 0}.gct .faq summary{cursor:pointer;color:#fff;font-weight:600;font-size:15px}.gct .faq p{font-size:14px;color:var(--mut);margin:8px 0 0}\n.gct .links a{display:inline-block;background:#0c1e24;border:1px solid #1f4a55;color:var(--aq);text-decoration:none;border-radius:999px;padding:7px 14px;font-size:13px;margin:0 8px 8px 0;font-weight:600}.gct .links a:hover{background:#123540}\n.gct .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\u003cp class=\"eyebrow\"\u003eGC Tek AquaSieve · solids separator before the pump · plastic or 316 stainless · 2\" to 4\"\u003c\/p\u003e\n\u003ch2\u003eStop being a slave to the pump basket\u003c\/h2\u003e\n\u003cp class=\"lede\"\u003ePumps and filters always work better with a solids separator ahead of the pump. The \u003cb\u003eAquaSieve2\u003c\/b\u003e is a 12\" x 27\" high-impact, implosion-resistant vessel with a huge strainer basket and a clear lid — the leaves and debris that clog a pump basket in a day collect here instead, and most owners empty it every one to four weeks. The \u003cb\u003eAquaSieve SS\u003c\/b\u003e is the industrial version, new and heavier for 2026: heavy-gauge polished 316 stainless, 10\" x 29\", stainless basket with 1\/8\" holes, positive-seal lid and a water drain fitting — in 2\", 3\" and 4\".\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\u003eShips from Southern California\u003c\/b\u003eIn-stock parts \u0026amp; media ship from Upland, CA. Local pickup available.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eHuge basket\u003c\/h3\u003e\n\u003cp\u003eWeeks between cleanings instead of days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePrimes the pump\u003c\/h3\u003e\n\u003cp\u003eBuilt-in reservoir helps the pump prime and protects it from running dry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eClear lid (AquaSieve2)\u003c\/h3\u003e\n\u003cp\u003eSee when it needs emptying without opening it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003e316 stainless (SS models)\u003c\/h3\u003e\n\u003cp\u003eHeavy-gauge polished stainless body and basket, 1\/8\" perforations. The 3\" is also available with opposing-side openings.\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\u003eBody\u003c\/th\u003e\n\u003cth\u003ePorts\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaSieve2\u003c\/td\u003e\n\u003ctd\u003eHigh-impact plastic\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003e12\" dia x 27\" H\u003c\/td\u003e\n\u003ctd\u003e$524.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaSieve2.2 SS\u003c\/td\u003e\n\u003ctd\u003eHigh-impact plastic\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003e10\" dia x 29\" H\u003c\/td\u003e\n\u003ctd\u003e$699.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaSieve3.3 SS\u003c\/td\u003e\n\u003ctd\u003eHigh-impact plastic\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003e10\" dia x 29\" H\u003c\/td\u003e\n\u003ctd\u003e$1,099.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquaSieve4.4 SS\u003c\/td\u003e\n\u003ctd\u003eHigh-impact plastic\u003c\/td\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003ctd\u003e10\" dia x 29\" H\u003c\/td\u003e\n\u003ctd\u003e$1,149.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003eUse the AquaSieve \u003cb\u003ebefore\u003c\/b\u003e the pump and a MultiCyclone \u003cb\u003eafter\u003c\/b\u003e it and you'll have the happiest filter and fish you can have. The 3\" and 4\" stainless units are what GC Tek specs on the MegaSystem3 and the big drum-filter builds.\u003c\/div\u003e\n\u003cdiv class=\"links\"\u003e\n\u003ca href=\"\/products\/gc-tek-multicyclone-50-prefilter\"\u003eMultiCyclone 50\u003c\/a\u003e\u003ca href=\"\/products\/gc-tek-aquasieve2-replacement-parts\"\u003eAquaSieve2 replacement parts\u003c\/a\u003e\u003ca href=\"\/products\/gc-tek-nishikigoi-rdf-drum-filter\"\u003eNishikigoiRDF drum filters\u003c\/a\u003e\u003ca href=\"\/pages\/gctek\"\u003eAll GC Tek\u003c\/a\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":"AquaSieve2 — 2\" (high-impact plastic, clear lid)","offer_id":34259828310061,"sku":"AS2","price":524.95,"currency_code":"USD","in_stock":true},{"title":"AquaSieve2.2 SS — 2\" (316 stainless)","offer_id":48002879324309,"sku":"AS2.2","price":699.95,"currency_code":"USD","in_stock":true},{"title":"AquaSieve3.3 SS — 3\" (316 stainless)","offer_id":34259828342829,"sku":"AS3.3","price":1099.95,"currency_code":"USD","in_stock":true},{"title":"AquaSieve4.4 SS — 4\" (316 stainless)","offer_id":48002879357077,"sku":"AS4.4","price":1149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/4961\/9245\/products\/1523146588AQUASIEVE2PIC_WCLEARLID.jpg?v=1588952701"},{"product_id":"gc-tek-multicyclone-50-prefilter","title":"GC Tek MultiCyclone 50 Centrifugal Prefilter","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 12px;color:var(--ink)}.gct .eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--aq);font-weight:700;margin:0 0 8px}\n.gct .lede{font-size:17px;color:var(--mut);max-width:70ch}.gct .bto{display:flex;gap:14px;align-items:flex-start;background:#2a1b0e;border:1px solid #6b3a12;border-left:5px solid var(--or);border-radius:12px;padding:14px 16px;margin:0 0 22px}\n.gct .bto b{color:#ffb070;display:block;font-size:14px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:3px}.gct .bto p{margin:0;color:#f3e5d8;font-size:14px}.gct .bto svg{flex:0 0 26px;margin-top:2px}\n.gct .trust{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0 26px}.gct .trust div{background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:13px;color:var(--mut)}.gct .trust div b{display:block;color:#fff;font-size:14px;margin-bottom:2px}\n.gct .feat{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 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 var(--aq);border-radius:10px;padding:14px 16px;margin:0 0 26px;font-size:14px;color:var(--mut)}.gct .note b{color:#fff}.gct .note.warn{border-left-color:var(--or)}\n.gct .two{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0 0 26px}.gct .two\u003e*{margin-top:0!important}.gct .box{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:16px}.gct .box h3{margin:0 0 8px}.gct ul{margin:0;padding-left:18px;color:var(--mut);font-size:14px}.gct li{margin:0 0 6px}.gct li b{color:#fff}\n.gct .faq details{border-bottom:1px solid var(--line);padding:10px 0}.gct .faq summary{cursor:pointer;color:#fff;font-weight:600;font-size:15px}.gct .faq p{font-size:14px;color:var(--mut);margin:8px 0 0}\n.gct .links a{display:inline-block;background:#0c1e24;border:1px solid #1f4a55;color:var(--aq);text-decoration:none;border-radius:999px;padding:7px 14px;font-size:13px;margin:0 8px 8px 0;font-weight:600}.gct .links a:hover{background:#123540}\n.gct .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\u003cp class=\"eyebrow\"\u003eGC Tek MultiCyclone 50 · centrifugal solids separator · after the pump\u003c\/p\u003e\n\u003ch2\u003eThe prefilter that works better the faster you flow\u003c\/h2\u003e\n\u003cp class=\"lede\"\u003eMost prefilters separate better at slow flow. Not this one — the MultiCyclone uses centrifugal separation, so the faster the water spins the better the cyclone works. It catches up to 80% of the solids before they reach the bead filter, has no media to clean, and purges with just 3–4 gallons of water. Minimum 13 gpm, maximum 132 gpm. 24\" × 11.5\", 2\" connections.\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\u003eShips from Southern California\u003c\/b\u003eIn-stock parts \u0026amp; media ship from Upland, CA. Local pickup available.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feat\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eUp to 80% of solids\u003c\/h3\u003e\n\u003cp\u003eCaught before the filter, so backwash intervals stretch out.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eNo media\u003c\/h3\u003e\n\u003cp\u003eNothing to replace — open the purge valve, done.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003e3–4 gallon purge\u003c\/h3\u003e\n\u003cp\u003eBarely dents your water level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003e13–132 gpm\u003c\/h3\u003e\n\u003cp\u003eSized for one pump on a 2\" system; plumb after the pump.\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\u003eFlow range\u003c\/th\u003e\n\u003cth\u003ePorts\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eMultiCyclone 50\u003c\/td\u003e\n\u003ctd\u003e13–132 gpm\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003e24\" × 11.5\"\u003c\/td\u003e\n\u003ctd\u003e$499.95\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"links\"\u003e\n\u003ca href=\"\/products\/aqua-sieve-2-pond-strainer\"\u003eAquaSieve (before the pump)\u003c\/a\u003e\u003ca href=\"\/pages\/gctek\"\u003eAll GC Tek\u003c\/a\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":"Default Title","offer_id":47994744733845,"sku":"MC50","price":499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/4961\/9245\/files\/c13_1745304703.webp?v=1789423214"}],"url":"https:\/\/mystickoi.com\/collections\/gc-tek-prefilters.oembed","provider":"Mystic Koi \u0026 Water Gardens","version":"1.0","type":"link"}