643-S&P model 643 wall cap. Aluminum natural finish, built in backdraft damper. For 8″ round duct.

MG1-S&P white enamel painted steel grille. Mounting screws included. (FF100-300)643-S&P model 643 wall cap. Aluminum natural finish, built in backdraft damper. For 8" round duct.

643-S&P model 643 wall cap. Aluminum natural finish, built in backdraft damper. For 8″ round duct.

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S&P model 643 wall cap. Aluminum natural finish, built in backdraft damper. For 8″ round duct.

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