4" X 14" Modern Floor Register Grille With Dampers - Contempo Slotted Grate - HVAC Vent Duct Cover - Matte Black w8h8 Think of the diameter as

Think of the diameter as a straight line from one end to the other

Actual Filter Size – 25 3/4"w x 31 3/4" x 1"

ready to enhance your space

actual front end outer dimensions are approximately 22 5/8" width X 42 5/8" height -

Heavy Gauge Steel – Heavier gauge than needed

4" X 14" Modern Floor Register Grille With Dampers - Contempo Slotted Grate - HVAC Vent Duct Cover - Matte Black w8h8 Think of the diameter as+Product Details Size 4"h x 14"w is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 5" width x 15. 75" height. High Quality Solid rigid steel body for durability and reliability with dampers operable by switch for airflow directional control. Installation Location Floor. Design Premium plated finish and modern contempo design forming a luxurious & impressive piece for your home. Quality Packaging