Crown Vent Guard-Black 2" Open Screen vents They do not work well

They do not work well in wood

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

Orders placed by 3 pm MT will ship by the next business day

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

They have a screen to keep insects out

Crown Vent Guard-Black 2" Open Screen vents They do not work wellThe Crown Vent Guard protects your plumbing vent pipe from getting clogged with debris and prevents rodents from entering. Installs quickly and easily with standard PVC pipe cement. This is a 3" Vent Guard with an adapter so it fits standard 2 inch vent pipe. Unit features a two piece twist locking interchangeable screen vent cap. Vent cap only. Does not include the pipe or roof jack. VGB2