maximize the efficiency and performance of mr.cool signature heat pump and air conditioner split systems. features & benefits baked polyester finish over double hemmed galvanized steel for maximum durability. 1 piece design with smaller profile for closets. proprietary aluminum blend coil with advanced corrosion resistance. approved for installation in manufactured housing and mobile homes. enhanced tube-and-fin coil design featuring high efficiency heat transfer technology. multi-position – upflow/horizontal & left/right. improved gasketing on doors for 2% or less air leakage. sequenced for demand management. high-strength, heat / corrosion / mold resistant, antimicrobial treated smc polymer drain pan. field installed 5 – 20kw electric heat kits with easy plug connections. built-in indoor time delay for increased efficiency. sleeves on distributor tubing to protect tubes.