{"product_id":"round-hole-aquarium-drain-fitting-25-50mm-high-flow-flush-bottom-bulkhead-seafood-pool-sump-plumbing","title":"Round Hole Aquarium Drain Fitting (25-50mm) | High-Flow Flush Bottom Bulkhead | Seafood Pool \u0026 Sump Plumbing","description":"\u003cdiv style=\"background-color: #f8f9fa; padding: 10px; border-left: 4px solid #0056b3; margin-bottom: 20px;\"\u003e\u003cp style=\"margin: 0;\"\u003e\u003cem\u003e🔄 Need a drain with an anti-clog grid cover to keep small fish safe? Check out our \u003cstrong\u003e\u003ca href=\"https:\/\/atradesen.com\/collections\/fish-tank-intake-drainage-joints\/products\/mini-flush-mount-aquarium-bottom-drain-20-25mm-slotted-anti-clog-pvc-bulkhead-straight-elbow-tank-connector\" style=\"color: #0056b3; text-decoration: underline;\"\u003eSlotted Anti-Clog Flush Mount Drains\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/em\u003e\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eRound Hole Flush Drain Fitting for High-Density Tanks\u003c\/h2\u003e\u003cp\u003eExperience unrestricted water flow with our Round Hole Drain Fittings, exclusively sourced for \u003cstrong\u003eAtradesen.com\u003c\/strong\u003e. Specifically engineered for high-density breeding tanks, seafood holding pools, and large aquariums, this fitting features an open-hole design (no slotted grill) to ensure massive water turnover and absolutely zero clogging from heavy fish waste.\u003c\/p\u003e\u003ch3\u003e🌊 Maximum Flow \u0026amp; Smart Plumbing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnrestricted Round Hole Design:\u003c\/strong\u003e Delivers incredibly smooth and rapid drainage. Perfect for heavy bio-load setups where thorough, blockage-free waste removal is critical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-Saving \u0026amp; Flush Mount:\u003c\/strong\u003e Sits compactly against the tank bottom to save valuable swimming space. Available in both Straight and Elbow profiles to fit tight under-cabinet clearances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Drain Switch Setup:\u003c\/strong\u003e Connect it with a standard PVC ball valve below, or simply plug the top hole with a rubber stopper for a highly effective, low-cost manual drainage switch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003e⚠️ Sizing \u0026amp; Drilling Guide (Crucial!)\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eTo guarantee a 100% leak-proof installation, please follow the Atradesen.com exact drilling specifications:\u003c\/p\u003e\u003cul style=\"background-color: #e2e3e5; padding: 15px 15px 15px 35px; border-radius: 5px; color: #383d41;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Clamping Capacity:\u003c\/strong\u003e Safely secures to glass or acrylic panels between \u003cb\u003e3mm and 15mm\u003c\/b\u003e thick using the included gaskets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize 25:\u003c\/strong\u003e Interface O.D. 25mm | \u003cb\u003eDrill Glass Hole: 20-25mm\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize 32:\u003c\/strong\u003e Interface O.D. 32mm | \u003cb\u003eDrill Glass Hole: 27-32mm\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize 40:\u003c\/strong\u003e Interface O.D. 40mm | \u003cb\u003eDrill Glass Hole: 35-40mm\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize 50:\u003c\/strong\u003e Interface O.D. 50mm | \u003cb\u003eDrill Glass Hole: 45-50mm\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atradesen","offers":[{"title":"25 Straight Type","offer_id":56354469314726,"sku":"Fish_Tank_222","price":3.93,"currency_code":"USD","in_stock":true},{"title":"32 Straight Type","offer_id":56354469347494,"sku":"Fish_Tank_225","price":4.65,"currency_code":"USD","in_stock":true},{"title":"40 Straight Type","offer_id":56349958144166,"sku":"Fish_Tank_226","price":5.21,"currency_code":"USD","in_stock":true},{"title":"50 Straight Type","offer_id":56468446740646,"sku":null,"price":6.93,"currency_code":"USD","in_stock":true},{"title":"25 Elbow Type","offer_id":56468446773414,"sku":null,"price":3.93,"currency_code":"USD","in_stock":true},{"title":"32 Elbow Type","offer_id":56468446806182,"sku":null,"price":4.65,"currency_code":"USD","in_stock":true},{"title":"40 Elbow Type","offer_id":56468446838950,"sku":null,"price":5.21,"currency_code":"USD","in_stock":true},{"title":"50 Elbow Type","offer_id":56468446871718,"sku":null,"price":6.93,"currency_code":"USD","in_stock":true},{"title":"25 Rubber Plug","offer_id":56468446904486,"sku":null,"price":1.93,"currency_code":"USD","in_stock":true},{"title":"32 Rubber Plug","offer_id":56468446937254,"sku":null,"price":3.93,"currency_code":"USD","in_stock":true},{"title":"40 Rubber Plug","offer_id":56468446970022,"sku":null,"price":0.93,"currency_code":"USD","in_stock":true},{"title":"50 Rubber Plug","offer_id":56468447002790,"sku":null,"price":0.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2588\/6118\/files\/Round_Hole_Aquarium_Drain_Fitting_25-50mm_High-Flow_Flush_Bottom_Bulkhead_Seafood_Pool_Sump_Plumbing-001.jpg?v=1778759703","url":"https:\/\/atradesen.com\/products\/round-hole-aquarium-drain-fitting-25-50mm-high-flow-flush-bottom-bulkhead-seafood-pool-sump-plumbing","provider":"Atradesen","version":"1.0","type":"link"}