4" Round Screened Vent, brown - bag of 4 Plugs RBS-100 4" 4PK

RBS-100 4" 4PK

970 si nfa (square inches of net free ventilation area)

3" White Open Screen Vent

The louvers are closely spaced to keep insects out

The tabs need to be bent over from the rear

4" Round Screened Vent, brown - bag of 4 Plugs RBS-100 4" 4PK4" Round Brown Screened Vent bag of 4 RLB 100 4" 4PK These round aluminum vents have louvers and a screen 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. 3. 500 si nfa (square inches of net free ventilation area). Bag of 4 vents. Made in