An AC booster for 22 systems! Drying agent Colder air Longer life A/C booster This product is a combination of 2 Enviro-Safe products mixed into 1 to promote maximum cooling performance. It will remove moisture from the AC system. As most people know, moisture = corrosion and corrosion lead to leaks. Nobody wants leaks in their AC system! This product also will reduce friction in system and provide colder air duct temps in most cases.