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Here is the Dynasty Spa Heater Gasket Oring/Gasket, which is a combination of Gasket and O-ring. You are getting (2) Gasket/O-rings here, lower than what most online sellers offer for 1.
- Pair of 2" Gasket O-rings Waterway Plastics Heater Unions
- It's a Gasket with a Built in O-ring.
- Use With Most Heater Unions, including Balboa, Waterway, Gecko, Hydro-Quip, Spa Builders and many more.
- Actual Measurement: 3 Inches