4" Round Plastic vent, white - bag of 4

4" Round White Plastic Vent - bag of 4 PLW-100 4" 4PK These round plastic vents are made of high quality UV stabilized wire and cable grade polypropylene and have a unique polypropylene screen system to keep insects out.They are easy to install in wood. Not made for glass, metal or PVC pipe. They fit into the hole made by a drill-type hole saw and are held in place by knobs on the side of the vent. No nails or screws are needed. Fits into a 4 inch round hole.4.80si nfa (square inches of net free ventilation area) Bag of 4 vents. Made in the USA. Orders placed by 3 pm MT will ship by the next business day, inventory permitting.