RR17506 Features: -Additional or replacement R-12 refrigerant tank for A/C recovery, recharge and recycle machines.-1/4" fittings: 17800A, 17800-2K, 17700A, 25150, 25175, 25200B series.-50 Lb. R-12 A/C Refillable Refrigerant Tank.-Repair only up to 1 yr.