9 systems total 8 split systems (air handlers with strip heat and heat pumps, except system 3 has straight AC condenser) 1 mini split ductless 12 filters replaced 2 times a year (7) 16x25x1 (2) 20x25x1 (2) 22x26x1 (1) 17x21x1 2 belts (1) AX48 (1) AX47 Will need at least 250' of garden hose and a hydrant key 5 of the air handlers are above drop ceilings on the first floor 8' ladder will be needed