Hot Tub Gaskets and O-Rings

This is a Flat Gasket for 2" Pump or Heater Union Extra Thick 1/4". It is a 2 7/8" Outside Diameter and 2 1/8" Inside Diameter.

This part is a Gasket Heater Union Mo-Flo, 2" ID x 2-3/4" OD Cal Spa with a 2-5/8" Center to Center Small Lip.. The Lip is about 2-5/8" Center to Center but is really thin and tiny meaning the other style gasket with a thick 2-5/8" lip will not work.. ...

NOTE: This gasket does not fit your Coleman SALUSPA DO NOT order it.. Click this link to see Saluspa Gaskets.. Saluspa This part is a Standard 1 1/2" Heater or Pump Union Gasket. The gasket is 2 3/8" across and fits unions that have a 1...

This part is a O-Ring Heater or Pump Union 2-3/8" ID 1/8" 2 1/2" Center to Center.. This o-ring is used in many different applications such as heater 2" tailpiece unions or pump unions as well as some pool applications. The inside diameter is 2 3/8 and...

Flat Gasket for 1-1/2" Union Pump or Heater, 2-5/16" OD, 1-7/16" , This gasket can be used in conjunction with an o-ring when you need extra room for a tighter seal.

This part is a Flat Gasket for 2" Union, 2-15/16" OD, 2-1/8" ID no Lip, This gasket is used in many applications and can be using in combination with an o-ring if you need extra thickness to make a good seal. Heater Union Part Type  ...

This part is a Standard 2" Heater or Pump Union Gasket with a 2 1/2" Lip Center to Center. The gasket is 2 7/8" across on the outside the inside diameter is about 2 3/16" and the lip that fits into the union is 2 1/2" center to...

This Parts is a NON-Standard 2" Heater or Pump Union Gasket with a 2 5/8" Center to Center Lip. The gasket is 2 7/8" across on the outside the inside diameter is about 2" and the lip that fits into the union is 2 5/8" center to...

You are buying a O-Ring that fits a Waterway Brand2 1/2" Slip X 2 1/2" Threaded Pump Union with Gasket or O-ring that matches Union. This o-ring measures about 2 3/4" Inside Diameter and is 1/8" Thick... Please Choose with Care as We Do Not...

You are buying a 1 7/8" Center to Center O-Ring that fits 1 1/2" Heater Union that features a 1 7/8" groove. The O-Ring is 1 7/8" center to center and fits most 1 1/2" heater unions but there are exceptions which normally would be a 2 1/8" center to...

This part is a Standard 2 1/2" Pump Union O-Ring. The O-Ring is 2 1/2" Center to Center across and fits some unions but there are exceptions so please see the pictures and compare. This part is used in hot tubs between a pump...