Provided Quote for HVAC Replacement to a residential customer near Whispering Farms. Gave estimates for a 14,16,18 seer units, if going with 16 seer or higher plenums need replacing, if going with 18 seer plenums and thermostat wiring would need to be replaced. If going with 16 seer include a air scrubber. If going with 18 seer include air scrubber and surge protectors. Current system is a 3.5 ton, if going with 14 seer it needs to be a 3.5 ton.