10" X 8" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White 10" Round Duct Pipe Actual Filter Size – 31

Actual Filter Size – 31 3/4"w x 15 3/4" x 1"

+ Product Details Size - 10"w X 12"h is the size for the duct opening measurement only

Round-neck-to-square-face construction results in 360 degree air diffusion pattern similar to a full round diffuser

Sleek Design – The clear and unobtrusive design ensures it blends seamlessly with any home

Universal Fit – Measures 6-1/4" wide x 4-3/4" high x 3" deep

10" X 8" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White 10" Round Duct Pipe Actual Filter Size – 31+ Product Details Outer dimensions: 11. 75"W x 9. 75"H fits a 10" X 8" duct opening Durable stamped steel construction ensures long lasting performance Designed for sidewall and ceiling installation with included screws Multi shutter damper with easy lever for precise airflow control Smooth powder coated white finish for a sleek look and scratch resistance + Product Description Maximize your homes airflow with this premium Air Supply Grille air supply