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RHS Boating & Marine

70mm White Polypropylene Scupper Flap Valve for Boat Installation - RWB1431 RWB1431

$7.15 each
Brand: RHS Boating & Marine – Boat Parts, Marine Accessories & Boating Supplies

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70mm White Polypropylene Scupper Flap Valve for Boat Installation - RWB1431

70mm White Polypropylene Scupper Flap Valve. This scupper component is intended for a suitable boat drainage arrangement. Its flap allows water to leave through the intended outlet and closes against water entering through that opening. The selected model's material, dimensions and supplied parts are listed below so the physical installation can be checked before ordering. Scuppers need to be considered as part of the boat's drainage layout: outlet position, mounting surface and the relationship to the waterline are important alongside the size of the fitting itself.

Choosing and using this product

Inspect the existing drain or planned mounting position before choosing a replacement. Measure the available space and confirm whether the job needs a surface-mounted scupper valve or a complete through-hull arrangement. Check the mounting face and ensure the flap will have room to move without interference from nearby hardware. Where a hose connection is provided, match the hose bore and allow a clear route without kinks or unsupported loads. Follow the boat's installation guidance for sealing and fastening the component, and obtain marine installation advice if the outlet position or hull penetration is uncertain. After fitting, test that water can leave as intended and inspect the mounting and hose connections for leakage. Check the flap for debris or distortion rather than assuming a closed-looking flap is sealing correctly. Keep the outlet and flap accessible for cleaning. A scupper is a drainage component, not a substitute for checking the boat's overall water-management arrangements. Inspect it before use and during routine maintenance, especially after the boat has collected leaves, sand or other debris around the drain. Recheck the attachment and flap movement after any impact or nearby repair.

Product details

  • 70mm outside diameter.
  • White polypropylene with rubber flap that drains water and closes against ingress. Stainless fastening screws included.
  • Product code: RWB1431.