1 3/4" Scupper Flapper Kit

Product Description

Extend the life of your boat’s drainage system without replacing the entire scupper assembly—our Scupper Flapper Replacement Kit offers an easy, cost-effective solution. Designed for universal compatibility with scuppers featuring a 1.75" diameter flapper, this kit provides everything you need to restore your scupper’s proper function quickly and reliably.

Crafted with a durable black rubber flapper and complemented by a stainless steel retainer wedge and machine screw, this kit delivers long-lasting performance even in harsh marine environments. The corrosion-resistant hardware ensures secure attachment, preventing leaks and water ingress that can damage your vessel.

Installation is straightforward—simply remove your worn or damaged flapper and replace it with this new kit. The quick, hassle-free process saves you time and money by avoiding the need for a full scupper replacement. Regular maintenance with our replacement flapper kit keeps your boat’s drainage system running smoothly, helping to avoid costly repairs down the line.

Product Specifications 

• Flapper Diameter: 1.75" (fits standard scuppers with this size)

• Material: High-quality black rubber flapper

• Hardware Included: Stainless steel retainer wedge and machine screw

• Compatibility: Universal fit for most scupper models with 1.75" flapper diameter

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.