Opening/closing flaps prevents outside elements from entering the vent. UV inhibitor is used to help prevent the premature fading of vent. 4" Brown plastic louvered vent with 11" tail pipe, 4" Brown plastic trim plate.
3/16x1/4MPT Barb Insert Brass
1x2-1/2 Black Nipple
3/8x2-9/16 Magnetic Nut Driver
4-11/16x2-1/8D Square Box