4" Round Plastic vent, brown - bag of 4
4" Round Brown Plastic Vent - bag of 4
PLB-100 4" 4PK
They are easy to install in wood. Not made for glass or 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.
4.80 si nfa (square inches of net free ventilation area)
Bag of 4 vents.
Made in the USA.
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Our Canadian customers may have to pay import fees.