Jim Black Escape Hatch 16" x 16"

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 : 19.50" x 19.50".
Inside Dimensions : 16.375" x 16.375".
Cutout Dimensions : 17" x 17".