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Perko Clam Shell vents are made of chrome plated brass and measure 1-5/8 inches high, 4" x 3-3/4". Clamshell vents are compact, versatile solutions to cabin and other below decks ventilation issues. Vents will cover a variety of different sized holes depending on mounting position and location, and install with #6RH type screws.
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Width x Height Opening
1-5/8" x 1-1/2"
7/8" x 7/16"
2" x 2"
1-7/8" x 9/16"
4" x 3-3/4"
2-1/2" x 1-5/8"
Clam Shell Vents
need to know what the all around size of this item?
"measure 1-5/8 inches high, 4" x 3-3/4". "
thanks ryan can you also tell me how tall it is. Thanks again
Exactly like the product installed by the manufacturer