The CPS Products UView SpotGun Jr Injection Starter Kit, No. 390100, is an all-in-one solution that removes the hassles of outdated methods and allows users to easily tackle A/C system repairs and maintenance, says the company. This kit includes the SpotGun Jr Injector with purge valve adapters, R-134a and R-1234yf couplers, two SpotGun Jr service hose assemblies, four universal oil cartridges (1 oz/30 ml), two ExtenDye cartridges (1 oz/30 ml), and two LeakGuard OneShot cartridges (1 oz/30 ml).