SRT048AHD10SRVS TRANQUILITY 18 (SR) VERSATILE SINGLE STAGE SERIES WSHP, 4 TON, VERTICAL, LEFT RETURN, TOP SUPPLY, 208-230/3, STRD DMX2.5 CONTROL, EXTENDED RANGE CABINET WITH 1" FILTER RAIL, COPPER HX, STAINLESS STEEL DRAIN PAN, NON COATED AIR COIL, STRD HGRH, CONSTANT VOLUME ELECTRICALLY COMMUTED BLOWER MOTOR, CLIMATEMASTER