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DuPont Tyvek is a unique brand and the only product manufactured this way
Use to bond laminates to wood and all conventional substrates
No screen to clog with lint
Fully embossed textured design
Builder's Best 4 In. White Plastic J-Block Dryer Vent Hood Max Fill DuPont Tyvek is a uniquePlastic vent hood faceplate with 1 piece flapper for clothes dryer and bathroom venting. Faceplate is 7. 5" W. x 8. 5" H. Fits 4" aluminum pipe (not included). Beveled and weighted design prevents birds from pecking the flapper open and keeps flapper closed during windy conditions. Reversible trim ring allows adjustment of the distance between the faceplate of the hood and the back trim ring from 0. 5" to 1. 15". Hood can be used for various