4inch PVC Hinged Vent Flap Valve (Large)
Brand: Aquabarrel
Color: White

Choose either the 3 or 4 inch version to fit your schedule 40 PVC pipe. The hinge allows the vented flap to swing open as water volume increases.

1/32" stainless mesh
Includes coupler to Standard Schedule 40 PVC
Hinged vent flap lifts open as water volume increases
Stop critters from living in your PVC pipe