Repair kit should take care of any flapper replacement job regardless of manufacturer.. Traditional flapper scuppers use molded rubber flappers that curl and deform over time, requiring replacement to prevent leaking. TH Marine flappers are molded of a thermoplastic elastomer that is resistant to UV and the elements, so they do not curl like rubber flappers. Kit contains all parts needed to repair 2 scuppers. Each kit contains 2 each of: 1-5/8" flappers, 1-7/8" flappers, and 2-1/4" flappers, and all necessary keepers and fasteners.