O-Rings & Gaskets

You are buying a Gasket & O-Ring that fits a 5"x 5" Flange Heater. NOTE: This listing does not include the heater!! These Parts are found in Plastic Heater housings in Brett Aqualine, Premier Allstate, and Hot Water Products. I have...

This part is a Set of (2) 2 1/2" Pump or Heater Union Gasket Only for use with a 2 1/2" Pump Union that meausres about 3 5/8" inside the threads. This gasket measures 3 1/4" O.D. x 2 3/8" I.D. and the lip is 2 7/8" center to center.  This...

  Note: Before You Buy This Part be sure it is correct..It would be very rare for this to be your heater nut unless you have Swim Spa with a very large 3" heater... These are found in some smaller hot tubs but is very rare. Watch the video and...

This part is a Set of (2) 2 1/2" Therm Style Pump or Heater Union Gasket Only for use with a 2 1/2" Heater or Pump Union. If your heater or Pump is 2 1/2" this part could be correct we offer (2) different sizes of 2 1/2" gaskets so you need to...