Hot Tub Gaskets and O-Rings

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...

Watkins Replacement ManifoldFor 1.5kW/120v heater assemblies. Available with 1/2" ports or 3/4" portsElement sold separately

5"x 5"Flange ElementWelded construction most commonly used in plastic manifolds such as Brett Aqualine, Premier, Allstate, and Hot Water products. Dual 5/16" thermowells, studs for thermodisc, 1/8"npt pressure switch tap, hole for current collector bolt...

High Flow Suctions1-1/2" slip rated at 100gpm. Hole size 2-3/8"

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 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 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.