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Gem Products 774 Stainless steel 4" round butterfly vent marinesurplus.com

Gem Products

Gem Products 774 Stainless steel 4" round adjustable Gemlux butterfly vent ventilator

$ 9.00

For holes up to 3 1/4" in diameter. Search "vent 775" for a slightly larger version.

This vent is adjustable using sliding knob. Commonly used on boats, RV's, and automotive applications. Several have been sold for BBQ's and smokers.

Mounting screws not included.


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