Evapcool, 6500 CFM, Down Draft Duct Cooler, Cools 1400-2400 SQFT, Motor Choice 1/2 HP, Not Included, 5600 Industry Standard Rating Or 3/4 HP 6600 Industry Standard Rating, 2 Speed Motor, For Use With PPS Motor #81544, TV #297-135, PPS Motor #81564, TV #293-123, PPS Pump #P-7G, Tv#111-507,PPS Pump #M-7500, TV #781-925, 8 Year Limited Warranty On Cabinet, Powder Coated For Durability. Cabinet Dimensions: 42-7/16 inch x 39 inch x 39 inch, Duct Opening: 19-3/4 inch x 19-3/4 inch x 9-5/8 inch.