3 in. x 72 in. Drain Water Heat Recovery Unit Product Height (in.):48 5 Warranty 5 year Cordless Yes Crisp geometry meets timeless 5 Warranty 5 year Cordless Yes Battery Voltage 36 volt Amperage 15 CA Residents: Prop 65 Warning(s) Yes Safety Listing UL safety listing Worm Drive No Blade Included Yes Hybrid Capable Yes Laser Guide Yes UNSPSC 27112700 Bevel Capacity (Degrees) 48 Laser Color N A Arbor Diameter 5 8 in Folding No It has a solid brass valve body to ensure a long lifespan and is WaterSense certified with a 1 The R3 72 will save up To 39% on your water heating costs and is easy to install by any plumber and most do it yourselfers No noticeable loss in water pressure