UView 480301 Spotgun Jr.™ LeakGuard™ Refill Cartridges
What is LeakGuard? Leakguard permanently and safely seals A/C leaks in both rubber and metal components. The only A/C Sealant available that is Certified to meet SAE J2670 Standard!
Unlike other A/C sealants, LeakGuard is an oil based sealant that does not have any of the dangerous side effects. It will not harden, crystallize, clog the A/C system or harm the recovery equipment.