Lambro 4in. Bath Fan Exhaust Through-the-Wall Vent Kit — Single Flap Vent, 8ft. UL 181 Foil Flex Duct, 11in. Aluminum Snap-Lock Tail Pipe, Model# 481UL

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- Kit includes 4-in. white plastic single flap vent, 4 in. x 11 in. aluminum snap-lock tail pipe, 4-in. x 8 ft. flexible UL® 181 Class 1 air connector, 3-in. to 4-in. plastic increaser (optional use), and two 4-in. metal spring clamps
- Recommended for bathroom fan venting
- Not for use with clothes dryer venting
- Opening/closing flap prevents outside elements from entering the vent
- Foil flex duct has a maximum operating temperature of 250°F
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