Evapcool, 4600 CFM, Side Draft Duct Cooler, Cools 800-1700 SQFT, Motor Choice 1/3 HP 4000 Industry Standard Rating, Not Included Or 1/2 HP 4500 Industry Standard Rating, Not Included, 2 Speed Motor, Aspen Pads Media, Side Draft, For Use With PPS Motor #81524, TV #295-623, PPS Motor #81544, TV #297-135, 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: 34-1/2 inch x 34-1/8 inch x 34-1/8 inch Duct Opening: 17-3/4 inch x 17-3/4 inch x 8-2/16 inch.