A/C Repair Ends Aluminum O-ring Assortment - ACRK-2 contains an assortment of A/C condenser aluminum O-ring repair ends in 3/8", 1/2", 5/8", and 3/4" diameters to be used with the SPLICE-LOK and KLEDGE-LOK A/C repair systems. Ends include external male, internal male, and external female. Fast, economical tube and hose repair. Repair pinhole leaks, cracks, kinks, and rub throughs with SPLICE-LOK or KLEDGE-LOK in air conditioning, coolant, transmission, oil, or fuel lines. Not for use in brake or clutch systems.