- Mounts over 1" to 1-1/4" drain tubes
- Universal hole pattern to replace any defective flapper scupper
- Grooved inside to fit over drain flanges
- Attractive complimentary ring and flapper colors
These flush mount flapper scuppers are designed to mount over a drain tube or to mount directly to a 1 1/2 thru hull with four screws. They feature the same curl proof flapper as the recessed scuppers above. These flappers will retrofit other manufacturers' rubber flapper assemblies.