Measuring for your new grille

As a general rule, all grilles are measured by hole size. That may be in the floor opening or wall or even ceiling. If your opening size is a 12" by 6", this will be the size grille you would order. Most air diffusers and floor registers are the same. The style of grille will determine what outside flange opening you will have. As a general rule most grilles will have a 1- 3/4" outer flange... making that 12x6 actually a 13-3/4 by 7-3/4.

Floor Registers from Central Air Supply

We are a complete heating & air conditioning supplier. We stock Floor registers from our main vendor Hart & Cooley. They are the premier distributor in the United States for Air diffusers and vent covers. Most covers can also be phrased as registers and air grilles. Our best sellers are 421 Floor registers as well as the 210 Floor vent cover and both are produced by Hart & Cooley.

In a future blog we will be describing how to measure the vent covers to make sure you are ordering the proper one for duct opening. We will also go into detail about which register might look best and most durable for your application.

If you have any questions on any floor register or vent covers, please check out our website at http://www.valueac.com/ or you can call us at 1-888-242-7725 toll free for guidance in selecting the proper grille.