Waterway Gasket P/N 711-3250 fits select hot tub pump unions referenced as 2-1/2" as well as select Coast Spas custom 3" heater tubes.
Description:
- 2-1/2" Flat Union/heater Gasket Flat
- Outside diameter is 3-3/8"
- Inside diameter is 2-3/8"
- Gasket is about 1/8" thick