Envirosafe Proseal for R12 Systems 4 oz Cans, Case of 12 Cans, R-12a

Enviro-Safe Proseal for R12 systems repairs minor leaks in mobile a/c systems. It seals leaks in evaporators, condensers, fittings and metal lines. Before replacing expensive parts and labor, try Enviro-Safe Proseal for R12 systems! Works on most mobile applications. Applications: automotive, campers, semi tractor trailers, combines, thrashers, agriculture applications. For best results, use Enviro-Safe Prodry for R12 systems BEFORE using the Enviro-Safe Proseal for R12 systems to remove any moisture in your system. Moisture is corrosive and no one wants that in their system!