The white plastic hood clothes dryer exhaust vent kit featuring 4 inch x 8 foot semi-rigid duct UL 2158A is ideal for venting through the wall. This kit is used for clothes dryer exhaust and other general venting applications that require moist air and humidity from exiting the home. The hood allows for maximum airflow while reducing back flow of exhaust air. The built in damper prevents back drafts while the removable guard prevents critters from entering the home through the vent. Maximum exhaust airflow – minimum back pressure For new or replacement vent installations 8 foot length flexible semi-rigid UL 2158A clothes dryer transition duct Semi-rigid duct has a maximum operating temperature of 482°F Opening and closing damper stays closed when not in use Hinged and removable screen for easy cleaning 11 inch length pipe for through the wall installation UV inhibitor is used to help prevent the premature fading of vent Recommended for electric or gas clothes dryer exhaust venting Series Name: Rigiflex Hood Height (Inches): 5.7 Hose Diameter: 4 Hose Length (Inches): 96 Elbow Included: No For Use With: Electric or gas dryers Hood Material: Plastic Hood Type: Preferred with guard Hood Width (Inches): 5.57 Hose Included: Yes Hose Type: Semi-rigid Kit Type: Outdoor exhaust Lint Collector Included: No Lint Trap Included: No Number of Clamps Included: 2 Vent Extender Included: No Vent Hood Included: Yes Warranty: 1-year limited CA Residents: Prop 65 Warning(s): No Safety Listing: UL safety listing UNSPSC: 72151200