4 Ton AC/HP Upflow/Downflow Aluminum Cased 'N' Coil, Airflow:Upflow/Downflow, CFM:1667, Metering Device:None, Refrigerant:R-410A/R-22, Connection:3/8" X 7/8" Sweat, Dims:371/4"H X 21"W X 211/2"D, Weight:80 Lbs, In Mfg Box, Made In USA. Note: Flex-Coil Models allow these coils to be used with R-410A Or R-22 for Added Flexibility to meet refrigerant system choice. A Piston or TXV Metering Device should be installed in the field to meet your sytem requirements.