Description: uses of perforated metal. Exhaust Tubes and Baffles Construction and Agriculture Equipment Grilles Small Engine Guards Roof Decking Panels and Doors Grain Bin Floors Building Soffets ...
Choose one of two types of pipe: either rigid PVC with predrilled holes or flexible drainpipe cut with slits. “For maximum effectiveness, use 4-inch perforated PVC pipe,” says Lamprey.