Remove and dispose of old HVAC system Install new 2Ton Rheem Gas/Electric Package unit on roof. Install new drop in curb Install 16x25 return can with 16x25 High Flow Grille. 16in return duct connect to existing Ductwork New Gas Flex and sediment trap New Condensation Drain line Tape and seal duct registers New Service disconnect and electrical whip Install Nest thermostat, I left behind.