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Waterway 711-4030 O-Ring/Gasket 2"

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O-Ring Gasket for Heater Manifold, 711-4030, Package of 2

  • Outside Diameter: 2-7/8"
  • Inside Diameter: 2-1/8"
  • Thickness: 3/16"
  • Waterway Part # 711-4030
  • Includes a package of 2 Gasket/O-Rings
Waterway gasket designed for hot tub heater or pump unions. Designed to go inside a 2" union and is classified as a 2-inch gasket. The Waterway 711-4030 is flat on one side and then has a raised o-ring on the other. Typically comes in a transparent material, Balboa's original ones be black or white. It is best practice to always change both gaskets on the heater tailpiece or the intake and discharge of the pump.


  • 5

    Posted by Unknown on Jan 01, 2022

    Quick shipping, perfect fit!