Jim black Round Escape Hatches 20″.
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.
*  External Handles for Emergency Escape.
Outside Dimensions :  22.50″.
Inside Dimensions :  19.50″.
Cutout Dimensions :  20″.

Jim black Round Escape Hatches 20″