{"product_id":"gc-tek-nishikigoi-wakimizu-bakki-shower","title":"GC Tek Nishikigoi Wakimizu Bakki Shower","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\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 Nishikigoi Wakimizu 湧き水 · “koi spring water” · bakki shower · polypropylene or 316 stainless\u003c\/p\u003e\n\u003ch2\u003eThe Japanese way to grow big, clean koi — built in Oklahoma\u003c\/h2\u003e\n\u003cp class=\"lede\"\u003eA bakki shower trickles water over tiers of media in open air: massive gas exchange, super-oxygenated biology, and a natural stripping of the nitrogen and dissolved organics that pressure filters can't touch. It's how the Niigata breeders keep their mud-pond water. The Wakimizu has a top drip tray with overflow for even distribution, a media support on the bottom tier so flow stays even across every opening, and multiple inlet\/outlet unions on the back top tier to hide the pipework. Choose a waterfall outlet or plumbed pipe-fitting outlets, in polypropylene or 316 stainless.\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=\"note\"\u003e\n\u003cb\u003eNew for 2026.\u003c\/b\u003e GC Tek's Nishikigoi line — designed in Chandler, Oklahoma, built to the standard koi keepers expect from the AlphaONE. First shipments started June 2026; better model-by-model photos are on the way from GC Tek.\u003c\/div\u003e\n\u003cdiv class=\"feat\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDrip tray with overflow\u003c\/h3\u003e\n\u003cp\u003eWater spreads evenly across the whole media bed instead of channeling down one side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eElevated bottom tier\u003c\/h3\u003e\n\u003cp\u003eMedia sits above the outlets so the last tier flows as evenly as the first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eHidden plumbing\u003c\/h3\u003e\n\u003cp\u003eMultiple inlet\/outlet unions on the back of the top tier. 60 and 80 are 3\"; 15–40 are 2\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMedia sold separately\u003c\/h3\u003e\n\u003cp\u003eRun Wakimizu media or NishikigoiSpiralHouse media — sized by the box below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"sec\"\u003eSizes\u003c\/h3\u003e\n\u003cdiv class=\"tbl\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003cth\u003eFlow\u003c\/th\u003e\n\u003cth\u003ePond up to\u003c\/th\u003e\n\u003cth\u003eInlets\u003c\/th\u003e\n\u003cth\u003ePolypropylene\u003c\/th\u003e\n\u003cth\u003e316 Stainless\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e370 mm \/ 15\"\u003c\/td\u003e\n\u003ctd\u003e2,600 gph\u003c\/td\u003e\n\u003ctd\u003e2,500 gal\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003e$920.00\u003c\/td\u003e\n\u003ctd\u003e$1,260.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e540 mm \/ 21\"\u003c\/td\u003e\n\u003ctd\u003e3,950 gph\u003c\/td\u003e\n\u003ctd\u003e4,000 gal\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003e$1,080.00\u003c\/td\u003e\n\u003ctd\u003e$1,895.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 mm \/ 40\"\u003c\/td\u003e\n\u003ctd\u003e8,000 gph\u003c\/td\u003e\n\u003ctd\u003e8,000 gal\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003e$1,400.00\u003c\/td\u003e\n\u003ctd\u003e$3,600.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1500 mm \/ 60\"\u003c\/td\u003e\n\u003ctd\u003e13,000 gph\u003c\/td\u003e\n\u003ctd\u003e15,000 gal\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003e$1,800.00\u003c\/td\u003e\n\u003ctd\u003e$5,600.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 mm \/ 80\"\u003c\/td\u003e\n\u003ctd\u003e18,500 gph\u003c\/td\u003e\n\u003ctd\u003e20,000 gal\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003e$2,200.00\u003c\/td\u003e\n\u003ctd\u003e$6,995.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cb\u003eWaterfall or pipe fitting?\u003c\/b\u003e Waterfall lets the bottom tier spill straight back into the pond (maximum aeration, and it sounds great). Pipe fitting gives you plumbed outlets so the shower can sit away from the pond edge or feed another filter. Same price either way. Pair with a NishikigoiRDF drum ahead of it so the shower media stays clean.\u003c\/div\u003e\n\u003cdiv class=\"links\"\u003e\n\u003ca href=\"\/products\/gc-tek-wakimizu-shower-media\"\u003eShower media (Wakimizu \/ SpiralHouse)\u003c\/a\u003e\u003ca href=\"\/products\/gc-tek-nishikigoi-rdf-drum-filter\"\u003eNishikigoiRDF drum filter\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":"Polypropylene \/ 15\" — up to 2,500 gal \/ Waterfall","offer_id":47996438741141,"sku":"NGBS15P-WF","price":920.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 15\" — up to 2,500 gal \/ Pipe fitting","offer_id":47996438773909,"sku":"NGBS15P-PF","price":920.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 15\" — up to 2,500 gal \/ Waterfall","offer_id":47996438806677,"sku":"NGBS15S-WF","price":1260.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 15\" — up to 2,500 gal \/ Pipe fitting","offer_id":47996438839445,"sku":"NGBS15S-PF","price":1260.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 22\" — up to 4,000 gal \/ Waterfall","offer_id":47996438872213,"sku":"NGBS22P-WF","price":1080.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 22\" — up to 4,000 gal \/ Pipe fitting","offer_id":47996438904981,"sku":"NGBS22P-PF","price":1080.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 22\" — up to 4,000 gal \/ Waterfall","offer_id":47996438937749,"sku":"NGBS22S-WF","price":1895.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 22\" — up to 4,000 gal \/ Pipe fitting","offer_id":47996438970517,"sku":"NGBS22S-PF","price":1895.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 40\" — up to 8,000 gal \/ Waterfall","offer_id":47996439003285,"sku":"NGBS40P-WF","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 40\" — up to 8,000 gal \/ Pipe fitting","offer_id":47996439036053,"sku":"NGBS40P-PF","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 40\" — up to 8,000 gal \/ Waterfall","offer_id":47996439068821,"sku":"NGBS40S-WF","price":3600.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 40\" — up to 8,000 gal \/ Pipe fitting","offer_id":47996439101589,"sku":"NGBS40S-PF","price":3600.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 60\" — up to 15,000 gal \/ Waterfall","offer_id":47996439134357,"sku":"NGBS60P-WF","price":1800.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 60\" — up to 15,000 gal \/ Pipe fitting","offer_id":47996439167125,"sku":"NGBS60P-PF","price":1800.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 60\" — up to 15,000 gal \/ Waterfall","offer_id":47996439199893,"sku":"NGBS60S-WF","price":5600.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 60\" — up to 15,000 gal \/ Pipe fitting","offer_id":47996439232661,"sku":"NGBS60S-PF","price":5600.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 80\" — up to 20,000 gal \/ Waterfall","offer_id":47996439265429,"sku":"NGBS80P-WF","price":2200.0,"currency_code":"USD","in_stock":true},{"title":"Polypropylene \/ 80\" — up to 20,000 gal \/ Pipe fitting","offer_id":47996439298197,"sku":"NGBS80P-PF","price":2200.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 80\" — up to 20,000 gal \/ Waterfall","offer_id":47996439330965,"sku":"NGBS80S-WF","price":6995.0,"currency_code":"USD","in_stock":true},{"title":"316 Stainless Steel \/ 80\" — up to 20,000 gal \/ Pipe fitting","offer_id":47996439363733,"sku":"NGBS80S-PF","price":6995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/4961\/9245\/files\/a8a558e8-ff31-4c4a-9dd0-ec060ebe1014_1786759367.webp?v=1789448132","url":"https:\/\/mystickoi.com\/products\/gc-tek-nishikigoi-wakimizu-bakki-shower","provider":"Mystic Koi \u0026 Water Gardens","version":"1.0","type":"link"}