Jim black Ventilation Hatches 12" x 17"

Jim black Ventilation Hatches 12" x 17".
Polar White / Bronze Glass.
Features :
 *  UV Stable Plastic Resin.
 *  Chemical Resistant.
 *  2" Hollow Core Seal with .500 Crush for Water Resistant Product.
 *  1/4" Temper Glass for Strength, Clarity, and Chemical Resistance.
 *  Matching Trim Ring.
Outside Dimensions : 15" x 20.50".
Inside Dimensions : 13.375" x 17.375".
Cutout Dimensions : 13.50" x 18.50".