Magnetic Metal Flush Register. Duct Opening 4x10 (overall 7x13) - Imperial Design

Product Details-For 3/4" thick hardware floor. Contact us for different hardware floor thickness.-Comes with a unit box and the metal magnetic decorative vent.-No dampers included.OverviewPlease refer to your air manufacturer's information on the tag located with your unit for the specifications to be compatible with the Product Details of your selected Stellar Air design.*Please note that these Stellar Air Metal flush registers are made with quality Oak wood and are unstained and unfinished.How to MeasureOur craftsmen will fabricate a ventilator to fit your supply duct opening.Remove the old register or grille from the floor, to expose the actual duct opening.Measure the inside dimensions of the duct opening.The width will always be listed first, followed by the length.Specs2 tonne 781 CFM (2% airflow drop)0.0201 I.W.C. pressure drop464 FPM (186% of recommended)3 tonne 1152 CFM (4% airflow drop)0.0329 I.W.C. pressure drop602 FPM (241% of recommended)4 tonne 1552 CFM (3% airflow drop)0.0632 I.W.C. pressure drop746 FPM (298% of recommended)