20"w X 20"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 22.5" Width X 22.5" Height - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE
High Quality Solid Stamped steel with Counter-Sunk Screw Holes (Screws Included) and No Sharp Edges
Our Filter Grille Latch is Easy To Use On Your Fungers And Requires No Screwdriver To Open.
Removable Door/Face For Easy Filter Change & Cleaning - Uses a 1" Thick Filter
Powder-Coat Finish - Smooth, Shiny, Scratch-Resistant, Beautiful. Looks Like It Was Just Waxed