A Great Home Depot Review on the Effectiveness of Critter Quitters.

This review was done on July 7 for two units purchased 5 years ago. They are still protecting the vents from squirrels.

Squirrels were thoroughly enjoying destruction of the lead on vents of our house. I went searching for solution & found the Critter Quitter. I ordered 2; figured out the angle that the roof was & cut them. I needed to have someone do the actual install as the angle of the roof was greater than what I could do. The two handymen who were here doing something roof related had no problem putting these over the existing PVC pipes & screwing them in. That was 5 years ago. Squirrels have left alone!