Product Feature: * APPLICATION: This Line Splice Kits work on steel or aluminum lines for any A/C, Transmission, or Power Steering Line repair. Not to be used for brake or fuel systems. * HIGH PERFORMANCE: This aluminum air conditioning line joint and connector will save you time and money by repairing only the damaged area instead of replacing the entire area. * FUNCTION: The air conditioner pipeline connector has excellent corrosion resistance and rust resistance, which can effectively avoid leakage, restore the air conditioner to its original working temperature and prevent future failures. .