One system . 5 ton straight cool split system with 10 kw electric heat 4 filters total. Air handler located in closet with easy access. Condenser located on ground in back of building. Filters are in ceiling. Will need two 22"×22"×1" filters and two 12"×24"×1" filters. All filters can be reached with 6 foot step ladder. System make Tempstar Outdoor Model N4A360AKC300 Serial E121409714 Indoor Model FSM4X60000AT Serial A110286011