O-Rings & Gaskets

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...

This Face Plate O-Ring Is 5 1/8" Inside Diameter and is 1/8" Thick. It is found on Aqua-Flo 1 1/2" x 1 1/2" (Which Measures 2 3/8" Outside of the threads on the Sunction and Pressure Side of the Wet End) These Wet Ends used the names Flo-Master,...

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...

This part is a Set of (3) Standard 2" Heater or Pump Union Gasket with a 2 1/2" center to Center Lip.. 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"...

This Part is a Set of (2) Standard 2" Heater or Pump Union Gasket with a lip that is 2 1/2" 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...

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...