If your scupper is fine, why replace the whole thing? This flapper kit has a 1-3/4" diameter black rubber flapper, black plastic retainer wedge, and stainless steel screw to fit any scupper with a 1-3/4" flapper.
If you have another scupper, just measure the flapper and: If it is 2" in diameter, you need Scupper Flapper Kit PER0002
If it is 1-7/16" in diameter, you need Scupper Flapper Kit PRE56553FLAP.
If it is 1-5/8" in diameter, you need Scupper Flapper Kit PRE56677FLAP.
If you don't see the flapper kit you need, click "Contact Us" and let us know what you need!