1- TRANE 4 TON 16 SEER 2 SPLIT SYSTEM WITH 2-STAGE GAS HEATING; PRO1 PROGRAMMABLE THERMOSTAT AND COMPLETE NEW DUCT SYSTEM( DOES INCLUDE NEW SUPPLY GRILLS BUT WILL USE SUPPLY REGISTER BOXES). JOB WILL INCLUDE REMOVING OF 3 SECTIONS OF CEILING IN ORDER TO REMOVE & INSTALL NEW DUCT SYSTEM.DUE TO PITCH OF ROOF.