RFS-2-DPRecessed Flapper Scupper Drains - White These innovative push-together scuppers easily snap together to adjust to varying hull thicknesses. The mating ribs lock the pieces together for a secure installation. The male portion can be cut off to accommodate thinner hulls. Available in two different female lengths to accommodate hulls from 1 1/2" to 3 5/8". Installs in a 1-7/8" hole. Flange O.D. is 2 15/16". Features: Low-profile design enhances aesthetic appeal while ensuring functionality Flexible