Indoor dryer vent kit safely traps lint from your electric clothes dryer when outdoor venting is not possible. Easy-to-install kit includes a heavy-duty, 5 ft. L x 4" diam. transition duct, a plastic lint reservoir, 2 adjustable plastic clamps and a mounting bracket. Ideal for apartments, condos and RVs. Not for use with gas dryers. Reservoir measures 6-3/4" L x 7-1/4" W x 6-3/4" H.