Keystones

Keystones will fit these gable vents: Octagons, Squares, Rectangles, Round Tops and Half Rounds. The Keystone screws onto the gable vent and the screw is hidden under a round tab.

Unit Dimensions: 4" x 4-1/2” x 1"

Economy Octagon Design

Outside Dimensions: 19” x 19-1/4”
Rough Opening: 10” x 10"
Venting Area: 46.75 Sq. in.

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Octagon Design 22”

Outside Dimensions: 24-1/2 x 25-1/4”
Rough Opening: 11” x 11"
Venting Area: 79 Sq. in.

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Round Design 22”

Outside Dimensions: 24-1/2 x 25-1/4”
Rough Opening: 11” x 11"
Venting Area: 75 Sq. in.

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Round Design 32”

Outside Dimensions: 33-1/4” x 34-1/4”
Rough Opening: 18” x 18"
Venting Area: 216.25 Sq. in.

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Square Design 12” x 12”

Outside Dimensions: 15-15/16” x 15-15-16”
Rough Opening: 10” x 10"
Venting Area: 35 Sq. in.

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Rectangle Design 12” x 18”

Outside Dimensions: 16 x 22”
Rough Opening: 10” x 16"
Venting Area: 63 Sq. in.

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Rectangle Design 18” x 24”

Outside Dimensions: 22-3/4” x 28-7/8”
Rough Opening: 16” x 22"
Venting Area: 127.75 Sq. in.

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Rectangle Design 22” x 32”

Outside Dimensions: 25” x 35-3/16”
Rough Opening: 20” x 30"
Venting Area: 288.25 Sq. in.

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Half Round Design 22” x 34”

Outside Dimensions: 25-3/8” x 39-9/16”
Rough Opening: 12” x 20"
Venting Area: 157.50 Sq. in.

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Round Top Design 14” x 22”

Outside Dimensions: 19” x 27-1/4”
Rough Opening: 12” x 15"
Venting Area: 85 Sq. in.

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Round Top Design 22” x 32”

Outside Dimensions: 25” x 35”
Rough Opening: 20” x 20"
Venting Area: 274 Sq. in.

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Triangle

O4/12 pitch, 5/12 pitch, 6/12 pitch,
7/12 pitch, 8/12 pitch, 9/12 pitch,
10/12 pitch, 11/12 pitch and 12/12 pitch

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