{"product_id":"qbp209056","title":"Perko Thru-Hull Scupper, Transom Mount, 1-1\/2 in Hose, 2-1\/8 in Max Hull Thickness","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Perko Thru-Hull Scupper for Mounting through Transom is a transom-mounted scupper valve for draining cockpit, deck, or splashwell water through the hull side of a boat. It fits 1-1\/2\" hose and uses a 1-7\/8\" mounting hole, with a 2-7\/8\" outside flange and support for hull thicknesses up to 2-1\/8\".\u003c\/p\u003e\u003cp\u003eThe body is molded white polymer and uses a soft black flapper to help reduce backflow while still allowing water to drain out. This makes it a practical fit for above-waterline scupper drains where water needs a simple exit path through the transom.\u003c\/p\u003e\u003cp\u003eThis fitting is intended for hose-connected thru-hull scupper use and should not be installed below the waterline. Before installation, confirm the hose size, transom thickness, hole diameter, and mounting location on the boat.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eFits 1-1\/2\" hose for common cockpit, deck, and splashwell drain plumbing.\u003c\/li\u003e\n\u003cli\u003eMounts through the transom with a 1-7\/8\" hole and a 2-7\/8\" outside flange.\u003c\/li\u003e\n\u003cli\u003eWorks with hull thicknesses up to 2-1\/8\", which helps confirm fit before cutting or replacing an existing scupper.\u003c\/li\u003e\n\u003cli\u003eMolded white polymer body suits visible transom installations where a clean white finish is preferred.\u003c\/li\u003e\n\u003cli\u003eSoft black flapper helps limit water backing into the drain opening.\u003c\/li\u003e\n\u003cli\u003eAvailable as the valve only or as the valve with a stainless steel cover for a different exterior finish.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eVariants\u003c\/h6\u003e\u003cp\u003eThis scupper is offered in two configurations. Both variants are based on the same transom-mounted scupper application, with the visible cover configuration being the main difference.\u003c\/p\u003e\u003cp\u003eThe valve-only version keeps the installation simple with the molded polymer exterior, while the stainless steel cover version adds a metal cover at the outside face of the fitting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e0323DP: Type Valve Only. This version is suited to straightforward replacement or installation where the molded white polymer exterior matches the boat and no stainless cover is needed.\u003c\/li\u003e\n\u003cli\u003e0323DP0STS: Type Valve \u0026amp; Stainless Steel Cover. This version keeps the same scupper function and adds a stainless steel cover for a different transom appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and fit\u003c\/h6\u003e\u003cp\u003eCheck the transom area from both sides before cutting or replacing the fitting. The hose connection, flapper clearance, mounting hole, and nut access all need enough room for a clean installation and later inspection.\u003c\/p\u003e\u003cp\u003eBecause this is a drain fitting, the mounting location should allow water to leave the deck or cockpit naturally without trapping standing water around the scupper. Bedding and fastening should be handled in a way that suits the hull material and the boatbuilder’s service practice.\u003c\/p\u003e\u003ch6\u003eUse cases on board\u003c\/h6\u003e\u003cp\u003eThis scupper is a good match for boats that need a simple transom drain for cockpit, deck, or splashwell water above the waterline. It is especially useful when the buyer needs to match a 1-1\/2\" hose and a compact flange footprint without moving to a more complex drain assembly.\u003c\/p\u003e\u003ch6\u003eWhat’s included\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eThru-hull scupper valve\u003c\/li\u003e\n\u003cli\u003eNut\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perko","offers":[{"title":"Valve Only","offer_id":52581971427509,"sku":"QBP209056-V1","price":60.09,"currency_code":"USD","in_stock":true},{"title":"Valve \u0026 Stainless Steel Cover","offer_id":52581971460277,"sku":"QBP209056-V2","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1334843_qbp209056.webp?v=1780201915","url":"https:\/\/www.qualityboatparts.com\/products\/qbp209056","provider":"Quality Boat Parts","version":"1.0","type":"link"}