Mitsubishi Electric Heat Pump Unit, M Series, 208/230 V, 60 Hz, 1 ph Phase, 18000 Btu/hr, 295 cfm, 328 cfm, 388 cfm, 431 cfm, 477 cfm, 530 cfm, 562 cfm, 625 cfm, 10 EER Rating, 16 SEER, 8.5 HSPF, 1/4 in Liquid Connection, 15 A Fuse Rating, 30 dBA, 37 dBA, 42 dBA, 47 dBA dBA Sound Level, Wall Mounting, Munsell, 32 to 115 deg F, 36-5/16 in Overall Width, 12 in Overall Height, Additional Information: R-410A Refrigerant, 9-13/16 in D