{"product_id":"premium-upvc-clear-lift-check-valve-20-32mm-silent-aquarium-anti-siphon-non-return-valve-true-union-plumbing","title":"Premium UPVC Clear Lift Check Valve (20-32mm) | Silent Aquarium Anti-Siphon Non-Return Valve | True Union Plumbing","description":"\u003cdiv style=\"background-color: #f8f9fa; padding: 10px; border-left: 4px solid #dc3545; margin-bottom: 20px;\"\u003e\u003cp style=\"margin: 0;\"\u003e\u003cem\u003e🔄 Upgrading your return line? Pair this check valve with our \u003cstrong\u003e\u003ca href=\"https:\/\/atradesen.com\/collections\/fish-tank-intake-drainage-joints\/products\/premium-upvc-180-fan-shaped-aquarium-water-inlet-25mm-detachable-wall-mounted-return-bulkhead-fish-safe-arc-design\" style=\"color: #dc3545; text-decoration: underline;\"\u003e180° Fan-Shaped Water Inlets\u003c\/a\u003e\u003c\/strong\u003e for the ultimate flow.\u003c\/em\u003e\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003ePremium UPVC Silent Clear Lift Check Valve\u003c\/h2\u003e\u003cp\u003ePrevent catastrophic tank floods and back-siphoning during power outages with the Tianyan True Union Check Valve from \u003cstrong\u003eAtradesen.com\u003c\/strong\u003e. Specifically engineered for demanding aquarium environments, this advanced non-return valve ensures water only flows one way while offering a transparent center body for instant visual flow inspection.\u003c\/p\u003e\u003ch3\u003e🌟 Advanced Silent \u0026amp; Reef-Safe Design\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Metal-Free Construction:\u003c\/strong\u003e Made entirely of high-grade UPVC with zero metal springs or screws. Completely rust-proof and 100% safe for sensitive marine reef aquariums and freshwater tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilent Lift-Shaft Mechanism:\u003c\/strong\u003e Unlike noisy traditional flap valves, this unique vertical lift-shaft minimizes friction and eliminates annoying \"clacking\" noises during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransparent Enlarged Core:\u003c\/strong\u003e The oversized clear viewing window reduces water flow restriction and allows you to easily monitor the valve's operation and cleanliness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Union Detachable Ends:\u003c\/strong\u003e Easily unscrew the threaded locking nuts to remove the entire valve body for cleaning or maintenance without ever cutting your PVC pipes!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003e🚨 CRUCIAL Installation Guide (MUST READ!)\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eTo ensure this check valve seals properly, please strictly follow the Atradesen.com installation rules:\u003c\/p\u003e\u003cul style=\"background-color: #f8d7da; padding: 15px 15px 15px 35px; border-radius: 5px; color: #721c24; border: 1px solid #f5c6cb;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e⚠️ VERTICAL INSTALLATION ONLY:\u003c\/strong\u003e Because this is a gravity-assisted \"Lift\" check valve, \u003cb\u003eit MUST be installed perfectly vertically (straight up and down) on your return pump line.\u003c\/b\u003e Installing it horizontally will cause it to fail and leak!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePVC Glue Required:\u003c\/strong\u003e The inner sockets require standard PVC cement\/glue to bond permanently with your metric hard PVC pipes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm Model:\u003c\/strong\u003e Fits 20mm O.D. Pipe | Valve Height: 113mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25mm Model:\u003c\/strong\u003e Fits 25mm O.D. Pipe | Valve Height: 113mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32mm Model:\u003c\/strong\u003e Fits 32mm O.D. Pipe | Valve Height: 110mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atradesen","offers":[{"title":"Dark Gray \/ 20mm I.D","offer_id":56476738191526,"sku":null,"price":36.85,"currency_code":"USD","in_stock":true},{"title":"Dark Gray \/ 25mm I.D","offer_id":56476738224294,"sku":null,"price":36.85,"currency_code":"USD","in_stock":true},{"title":"Dark Gray \/ 32mm I.D","offer_id":56476738257062,"sku":null,"price":40.76,"currency_code":"USD","in_stock":true},{"title":"Ivory White \/ 20mm I.D","offer_id":56476738289830,"sku":null,"price":36.85,"currency_code":"USD","in_stock":true},{"title":"Ivory White \/ 25mm I.D","offer_id":56476738322598,"sku":null,"price":36.85,"currency_code":"USD","in_stock":true},{"title":"Ivory White \/ 32mm I.D","offer_id":56476738355366,"sku":null,"price":40.76,"currency_code":"USD","in_stock":true},{"title":"Pure Black \/ 20mm I.D","offer_id":56476738388134,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"Pure Black \/ 25mm I.D","offer_id":56476738420902,"sku":null,"price":36.85,"currency_code":"USD","in_stock":true},{"title":"Pure Black \/ 32mm I.D","offer_id":56476738453670,"sku":null,"price":40.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2588\/6118\/files\/Premium_UPVC_Clear_Lift_Check_Valve_20-32mm_Silent_Aquarium_Anti-Siphon_Non-Return_Valve_True_Union_Plumbing-008.jpg?v=1779067884","url":"https:\/\/atradesen.com\/products\/premium-upvc-clear-lift-check-valve-20-32mm-silent-aquarium-anti-siphon-non-return-valve-true-union-plumbing","provider":"Atradesen","version":"1.0","type":"link"}