The length for the pipe is adjustable from 12" to 21", so it can be fitted in any place needed. (300mm-550mm) Louvered vent cover dampers operate quietly for maximum exhaust air flow. Prevents cold air, snow, or rain from entering the home Pre-bored holes for an easy installation. Dryer vent cover outdoor. Built-in Fly screen net to guard from pests/insects entering the duct.
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