Return Air Filter Grille 20x20,Air Return Vent Cover Grill for 20"W x 20"H Duct Opening,Steel HVAC Vent Covers for Wall and Ceiling,Holds 1" Thick AC Filter Leinuosen How To Assemble:Simply remove the

How To Assemble:Simply remove the lanterns from the bag

and the shelf can hold books

no separate kits needed

2 screw boxes and hooks

ensuring strength and longevity

Return Air Filter Grille 20x20,Air Return Vent Cover Grill for 20"W x 20"H Duct Opening,Steel HVAC Vent Covers for Wall and Ceiling,Holds 1" Thick AC Filter Leinuosen How To Assemble:Simply remove theThe return air grille for 20" x 20" duct opening (Overall Dimensions 21. 75" x 21. 75"). Pls make sure the size of wall duct opening actual hole is 20"W x 20"H Our 20x20" return air vent cover with a filter slot,holds standard 1" thick AC furnace air filter,perfect for filtered registers. Well made sturdy steel construction: The ac return vent cover is well made of sturdy steel with a powder coat finish,ensures long term durability use. Makes changing