Vaillant 150238 Automatic Bypass Valve

Sale price£50.40


The automatic air vent is a pressure safety device in the central heating unit. They work by using buoyancy to release built up air. As water flows through the heating/cooling system a float within the aav (automatic air vent) opens or closes dependant on

  • Colour: Brass
  • Comes with O-rings
  • Fits multiple Vaillant Boilers

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