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 measurements. This gasket measures 3 1/4" O.D. x 2 3/4" I.D. and the lip is 3 1/8" center to center. The other gasket we offer is 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 popular version. 2" is the most popular, 1 1/2"is 2nd most popular and 1" is 3rd most popular. This part is used in hot tubs to plumb a heater tube to a heater union or a Pump Union to a pump.
| Heater Union Part Type | Gasket |
| Part Type | Gasket |
| Inside Diameter | 2-3/4"id |
| Outside Diameter | 3-1/4"od |
Jacuzzi, Whirlpool, Gatsby, Blue Ridge, Echo, Imperial, Swift River, 26-08155, 26-08156, AQT2608156, E2550-0039ET, E2550-0300ET, 9141-013, 46-371-1295, 26-00174C, 26-08157, E2400-0300ET, HOS463711296, 46-371-1296, ASPRPL2-25-214, RMG-02-674, 740016011439, 90-423-1008, 60-0020, 44-02340, 608724, 9140-05, 9175-44
