Unbranded No Pest Vent 4 in. Wide-Mount Dual Door Wall Vent in Tan

The No-Pest Vent keeps pests out of exhaust vents, saves energy and is practically maintenance free. Its unique, dual door design prevents birds, mice, and other pests from entering the vent. The outer door creates a vortex effect, drawing additional external air to provide more door lift and flush lint away. This is the highest air flow, cleanest operating vent available.Better air flow saves energy and keeps lint from collecting around the ventsExclusive dual door design minimizes drafts and wind clap, keeps pests outNo lint-collecting screenUV stable material to guard against deterioration and promote longevity