O-Rings & Gaskets

This part is a 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 verify your...

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 2 3/16" ID abd 3/32" cross Section, O-Ring is found in Swimming Pool Filter Housings cartridge and DE Style. Some manufacturers it fits are as follows: American Products/Pentair, Hayward, Jacuzzi/Carvin, PacFab/Pentair and Applications would be:...

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....

This O-Ring is 5 1/8" Inside Diameter and 3/16" wide and is used in many applications for Wet Ends between the Face and Volute or under a Trap Lid brands include Hayward, PacFab, Pentair, Sta-Rite in these series Dura-Jet DJ Series Wet End Faces, Dynamo,...

This 5 7/8" O-Ring is used in many different applications such as filter housings with screw on housing bosides as well as some pool applications. The inside diameter is 5 7/8 and it is 3/16" wide.  This o-ring fits this Pressure filter...

This part is a 2 1/2" Pump Union Gasket Only for use with a 2 1/2" Pump Union that would measure about 3 5/8" Inside 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 version is the 4th most...

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 it...

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...