{"product_id":"upvc_standpipe_drain_bulkhead_fitting_20-40mm_for_aquarium","title":"UPVC Standpipe Drain Bulkhead Fitting (20-40mm) for Aquarium | Atradesen","description":"\u003cdiv class=\"atradesen-pdp\" style=\"font-family:sans-serif;line-height:1.6;color:#333;\"\u003e\n\u003cdiv style=\"background:#eef7ff;border:1px solid #b8daff;padding:10px 14px;border-radius:6px;margin-bottom:15px;font-size:14px;\"\u003e\n\u003cstrong\u003eLooking for All-in-One Shut-Off Drain Valves?\u003c\/strong\u003e Pair this with our low-profile drain series: \u003ca href=\"https:\/\/atradesen.com\/collections\/upvc-pvc-valves\" style=\"color:#0056b3;font-weight:bold;text-decoration:underline;\"\u003eExplore Integrated Aquarium Bottom Drain Ball Valves at Atradesen.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUPVC Dual-Function Standpipe Overflow \u0026amp; Bottom Flush Bulkhead Fitting\u003c\/h2\u003e\n\u003cp\u003eDesigned for commercial seafood holding tanks, aquaculture breeding racks, and marine aquarium sumps, this heavy-duty UPVC bulkhead fitting from \u003cstrong\u003eAtradesen.com\u003c\/strong\u003e delivers both reliable water level maintenance and high-volume bottom sludge draining. Featuring a precision slip-in top standpipe socket and a high-flow flat bottom drain plate, it enables effortless tank flushing with zero stagnant residual water.\u003c\/p\u003e\n\u003cdiv style=\"background:#fff3cd;border-left:4px solid #ffc107;padding:12px;margin:15px 0;font-size:13px;color:#856404;\"\u003e\n\u003cstrong\u003e⚠️ CRITICAL TANK THICKNESS \u0026amp; SIZING SPECIFICATIONS:\u003c\/strong\u003e\u003cbr\u003e• \u003cstrong\u003eWall Thickness Requirement:\u003c\/strong\u003e \u003cstrong\u003eSUITABLE ONLY FOR GLASS\/TANK WALL THICKNESS OF 10mm OR GREATER\u003c\/strong\u003e. Do not install on thin-walled tanks (\u0026lt;10mm) as the gasket will not compress properly.\u003cbr\u003e• \u003cstrong\u003eDual-Diameter Engineering:\u003c\/strong\u003e \u003cstrong\u003eBottom Socket\u003c\/strong\u003e glues directly to your main drain line using PVC solvent cement; \u003cstrong\u003eTop Socket\u003c\/strong\u003e accepts a matching-diameter vertical standpipe (friction-fit) to establish water depth.\u003cbr\u003e• \u003cstrong\u003eInstant Water Level Adjustment:\u003c\/strong\u003e Insert a vertical pipe to set overflow height; pull the standpipe out for rapid, full-bore bottom flushing without tools.\u003c\/div\u003e\n\u003ch3\u003eKey Engineering Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Flush Drain (Zero Residual Water):\u003c\/strong\u003e The low-profile slotted base sits flush against the tank floor, completely purging bottom debris and sludge without leaving dirty puddles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Commercial Seal:\u003c\/strong\u003e Engineered with an extra-thick silicone sealing gasket and reinforced threaded union ring, resisting leaks under constant aquatic head pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Clog Slotted Strainer Cap:\u003c\/strong\u003e Top protective cross-grate prevents fish, shellfish, and large stones from falling into the drainage main.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotable Water Grade UPVC:\u003c\/strong\u003e 100% resistant to marine saltwater, aquaculture chemicals, and organic waste with zero harmful plasticizer contamination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cp\u003ePerfect for seafood restaurant market tanks, multi-tier hatchery rack drainage, fish farm overflow standpipes, turtle tank purge sumps, and commercial hydroponic flood-and-drain reservoirs.\u003c\/p\u003e\n\u003cp style=\"font-size:12px;color:#777;margin-top:20px;border-top:1px solid #eee;padding-top:10px;\"\u003eSupplying commercial-grade aquatic plumbing and fluid equipment worldwide at \u003cstrong\u003eAtradesen.com\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Atradesen","offers":[{"title":"Straight 1 \/ ID 25mm x ID 20mm (Fits OD 25\/20mm)","offer_id":57723822473382,"sku":"Fish_Tank_261021S_01","price":3.55,"currency_code":"USD","in_stock":true},{"title":"Straight 1 \/ ID 32mm x ID 25mm (Fits OD 32\/25mm)","offer_id":57723822506150,"sku":"Fish_Tank_261021S_02","price":4.36,"currency_code":"USD","in_stock":true},{"title":"Straight 1 \/ ID 40mm x ID 32mm (Fits OD 40\/32mm)","offer_id":57723822538918,"sku":"Fish_Tank_261021S_03","price":7.85,"currency_code":"USD","in_stock":true},{"title":"Straight 2 \/ ID 25mm x ID 20mm (Fits OD 25\/20mm)","offer_id":57723822571686,"sku":"Fish_Tank_261021S_04","price":2.54,"currency_code":"USD","in_stock":true},{"title":"Straight 2 \/ ID 32mm x ID 25mm (Fits OD 32\/25mm)","offer_id":57723822604454,"sku":"Fish_Tank_261021S_05","price":3.21,"currency_code":"USD","in_stock":true},{"title":"Straight 2 \/ ID 40mm x ID 32mm (Fits OD 40\/32mm)","offer_id":57723822637222,"sku":"Fish_Tank_261021S_06","price":3.99,"currency_code":"USD","in_stock":true},{"title":"Elbow \/ ID 25mm x ID 20mm (Fits OD 25\/20mm)","offer_id":57723822669990,"sku":"Fish_Tank_261021S_07","price":2.54,"currency_code":"USD","in_stock":true},{"title":"Elbow \/ ID 32mm x ID 25mm (Fits OD 32\/25mm)","offer_id":57723822702758,"sku":"Fish_Tank_261021S_08","price":3.21,"currency_code":"USD","in_stock":true},{"title":"Elbow \/ ID 40mm x ID 32mm (Fits OD 40\/32mm)","offer_id":57723822735526,"sku":"Fish_Tank_261021S_09","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2588\/6118\/files\/UPVC_Standpipe_Drain_Bulkhead_Fitting_20-40mm_for_Aquarium_001.png?v=1792584666","url":"https:\/\/atradesen.com\/products\/upvc_standpipe_drain_bulkhead_fitting_20-40mm_for_aquarium","provider":"Atradesen","version":"1.0","type":"link"}