Vent Valve Two Way PVC 50mm

  • Item Code: 12120167
  • Item style may vary from image
  • 50mm two-way relief valve

Vent valves were designed as replacement for vent pipe used to ventilate drainage systems. Reduces the expense of the vent pipe and roof flashing. The one-way valve acts as a vacuum relief valve by letting air in. Internal or external use. The two-way valve lets air in and out. External use only.