CQs fit on undamaged vents also

Since the internal parts of our shields do not penentrate the vent, there is no need to trim the lead flashing away, so they can be used on new non-damaged vents to protect them from future squirrel damage, while at the same time eliminating that ugly lead oxide streaking that can occur over time on dark roofs. So if you recently reroofed your home, consider a Critter Quitter installation to protect it for the life of the house.