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2" Heater Union Tailpiece or Buttress

Waterway 2-Inch Union Tailpiece

This Waterway 2-inch union tailpiece provides a secure connection between the heater and pipework in spa systems. Designed for use with both rigid and flexible pipes, it features precise threading to ensure reliable performance.

Key Features:

  • External Thread: Screws clockwise into the heater split nut.
  • Compatibility: Works with 2-inch rigid and flexible rigid pipes.
  • Dimensions:
    • Outer Height: 53mm
    • Outer Diameter: 79mm
    • Internal Diameter: 55mm
  • Application: Connects plastic pipework to the metal heater tube.


  • Brand
  • Plumbing Size
  • Product Type
Brand: Waterway
Plumbing Size: 2"
Product Type: Heater Union