LOUVERED Supply Grille for Sidewall or Ceiling Application with SmoothGlide Technology, Easy Opening and Closing Back Dampers For Better Airflow Control, Quiet Lever HVAC Premium 2-Way AIR Supply Grille - Hardware&Tools Online Store HVAC Supply Grille 2 Pack] Fits 10x8 Duct Opening 1 WAY Steel Air Supply Diffuser By Handua | Register Vent Cover Grill For Sidewall And Ceiling | White | Outer Dimensions: 11.75" X 9.75 10x8 Vent Cover Product Details 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 home's airflow with this premium Air Supply Grille air supply... High Quality Solid Stamped Steel Construction, No Scuff Powder Coat Durable Finish, No Sharp Edges, 2 Recessed Screw Holes On Each Side with Screws Included, EASY INSTALLATION HVAC Premium 10 w X 8 h 2-Way-Flat Stamped Steel - Vent Cover - Grille Register - Sidewall or Ceiling - High Airflow - White [Outer Dimensions: 11.75 w X 9.75 h 10w X 8h Is The Size For The Duct Opening Measurement Only Actual Front End Frame Outer Dimensions Are 11., 75w X 9., 75h - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE