and its seamless drop-in installation process ensures effortless setup
Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 4" duct openings
Actual Filter Size – 11 3/4"w x 5 3/4" x 1"
+ Product Details Size – 20" x 24" or 24" x 20" is the size for the duct opening measurement only
+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 16" Or 16" x 34" duct opening (measured at the opening)
20"w X 20"h Extruded Aluminum Adjustable Core Mount Supply Ceiling HVAC Air Grille Interchangeable: 1-Way, 2-Way, 3-Way or 4-Way - Vent Duct Cover [Outer Dimensions: 21.125" X 21.125"] w24h24 and its seamless drop-in installation+ Product Details Size 20"w X 20"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 21. 125" X 21. 125". Design Re configurable Interchangeable Sections Easily convertible into 1 Way, 2 Way, 3 Way, or 4 Way Just lift sections and rotate to re configure direction. High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds