Product Description
Upgrade your vessel with our innovative stainless scupper flapper assembly—a seamless fusion of sleek design and functional engineering. Tailored for dry, comfortable boating, this transom scupper upgrade ensures superior performance in a compact, elegant form.
Constructed from mirror-polished 316 marine-grade stainless steel, this one-piece scupper eliminates mounting screws for a clean, refined look. Its hinged flapper operates effortlessly against a stationary silicone seal, ensuring a reliable watertight scupper seal without the wear issues common in rubber-flapper scuppers.
With a wider-than-standard 1.625″ thru hole, this assembly accommodates most flared brass drain tubes, enabling faster boat deck drainage. Designed specifically for vertical transoms, it delivers superior water management—just what any performance-minded boater needs.
For transoms with negative pitch, we offer SW1143, which includes an angled wedge to help the flapper “rest” closed—ensuring seamless operation on angled installations (more below).
Installation is a breeze: simply mount on clean, flat surfaces like gelcoat, epoxy, or aluminum using the pre-applied 3M VHB adhesive and follow the included instructions. Enjoy a dry-foot scupper solution that blends functionality with sophistication.
Product Specifications