77 Dust Caps for Air Conditioning Coil, Valve Core Port, O-Ring Caps for R12 and R134a Refrigerants, for Most Vehicles

[Complete 77-Piece Kit with 11 Styles] This automotive AC service kit includes 77 pieces in 11 different styles of caps. It covers both R12 and R134a ports, providing you with the right dust cap for any vehicle: a must-have for mechanics. [Internal O-rings Prevent Leaks] Each dust cap in this set features an internal O-ring, creating an airtight seal on the AC ports to stop refrigerant leaks and moisture ingress. [Superior Protection Against Debris and Corruption] Designed for harsh automotive environments, these caps block dust, dirt, grease, and contaminants from the service ports, preserving the integrity of the AC system and preventing damage to the valves. [High-Quality, Durable Plastic Construction] Made from premium, durable plastic, this cap set is UV, heat, and chemical resistant for long-lasting protection. [Guaranteed Performance] [Optimal AC Unit] This complete port sealing kit provides professional-grade protection for your vehicle's AC system. Keeping ports clean and sealed protects the refrigerant, reduces the risk of component failure, and ensures optimal cooling for driver comfort.