Ventapipe 100mm internal/external air admittance valve with dual fit synthetic rubber seal outlet for size’s 4″/110mm diameter pipe.


  • Fits 4″/110mm soil pipe.
  • Dual fit synthetic rubber seal outlet.
  • Rated A1.
  • Can be installed either above or below the flood level of connected appliances.
  • 40ltrs air flow capacity.
  • Stainless steel mesh incorporated within the air intake.
  • BS EN 12380:2002.
  • McAlpine recommend that where possible air admittance valves be installed internally within the building.
  • Temperature range from -20°C to +60°C.

For more information please visit the McAlpine website.