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″.

Jim black Ventilation Hatches 12″ x 17″