Unions & o-ringsUnion Gasket Flat 1.5" (2⁵⁄₁₆"OD)
Pump and heater unions seal with o-rings, which flatten and crack with age.

$36.99 + $6.99 shipping
Pump and heater unions seal with o-rings, which flatten and crack with age. Fits Hot Spring, Watkins.
Gasket Kit for Watkins/Hot Spring Double-Barrel Heater. Pump and heater unions seal with o-rings, which flatten and crack with age. Fits Hot Spring, Watkins.
Pump and heater unions seal with o-rings, which flatten and crack with age. Measure the union size before ordering. A dab of silicone lube on new o-rings helps them seal.
Unions & o-ringsPump and heater unions seal with o-rings, which flatten and crack with age.
Unions & o-ringsPump and heater unions seal with o-rings, which flatten and crack with age.
Unions & o-ringsPump and heater unions seal with o-rings, which flatten and crack with age.
Unions & o-ringsPump and heater unions seal with o-rings, which flatten and crack with age. Fits Waterway.