Compatible with all existing and new refrigerants and blends, including R410A Sweat models have solid copper fittings to allow ease of brazing Capacity ratings listed below are nominal system tonnage B13-644 is manufactured using XH-11 desiccant, and is 100% molecular sieve, which is required by some OEM's for use with R410A

Conn. Size: 3/8" ODF; Cubic Inches: 16; Length: 6.75"; R22/R410A Capacity: 4.6