Refrigerant

For factory-installed and retrofitted R-134a automotive air conditioning systems ACME threaded top Recharge hose sold separatelyShake can well. Start engine and set AC to maximum cooling and fan on the highest setting. Following the instructions on the recharge hose, connect recharge hose to can and vehicle AC low-side service port. Check system pressure before and frequently during recharge. While charging, hold can upright, rotating can between 12 o'clock and 3 o'clock every two to three seconds while continuously agitating (shaking) can back and forth.