Contains 4 pack replacement .
Fits the following Models:
HCM-300 Series: HCM-300T, HCM-305T, HCM-305T-CST, HCM-310T, HCM-315T, HCM-350, HCM-350B, HCM-350B-CST, HCM-350W. HCM-450BCST.
HCM-500 Series: HCM-530, HCM-535, HCM-535-20, HCM-540, HCM-550, HCM-550-19, HCM-551, HCM-560. HCM-600 Series: HCM-630, HCM-631, HCM-632, HCM-632TG, HCM-635, HCM-640BW, HCM-645, HCM-646, HCM-650.
HCM-700 Series: HCM-710.
HCM-1000 Series: HCM-1000, HCM-1000C, HCM-1010.
HCM-2000 Series: HCM-2000C, HCM-2001, HCM-2002, HCM-2020, HCM-2050, HCM-2051, HCM2052. HEV-312, HEV-355.
Replaces part # HAC-504, HAC-504AW, HAC504V1.