This unassembled, side-discharge, MasterCool® Belt-Drive Ducted Evaporative Cooler pulls hot, dry air through wet pads and converts it into a cool breeze through evaporation. A perforated air inlet screen provides more airflow than standard screens. For continuous operation, simply connect unit to water supply. The rugged, rust- and corrosion-resistant, bolted design helps provide smooth, quiet, long service. The cabinet is made from galvanized steel to help offer durability. Louvers are removable for service. Single-inlet unit without drive motor includes rigid evaporative pad. Note: Cooler accommodates a ½, ¾, or 1 HP motor (sold separately) depending on cooling needs. Drive pulley also sold separately. Ideal for indoor and outdoor cooling for most industrial, commercial, and residential settings in dry, arid climates.