Super Chill was developed as an A/C system performance enhancer. Boosts A/C performance. Lowers vent temperatures & improves system efficiency. Containes Stop Leak to rejuvenate o-rings and seals. Reduces friction in compressor. Compatible with all 134a mobile systems. Comes in a easy to use aerosol can attached with pre-vacuumed hose to avoid air entry into system during initial connection.