10Pcs A C System Valve Cap Set for R134a Vehicles, 13mm and 16mm Port Caps, Blue Low Side 5 Sets and Red High Side 5 Sets, Fits Most R134a Air Conditioning Systems

10Pcs R134a A/C Valve Cap Set for 13mm & 16mm Ports
✔️ 10 pcs blue 13mm low-side and red 16mm high-side caps

Protects service ports on R134a A/C systems. These caps are handy for on-vehicle maintenance, workshops, and DIY refrigerant work, helping keep out dust and moisture from low-side (13mm) and high-side (16mm) ports. Note: not compatible with certain models; please verify your vehicle before purchasing.

✅ 5 blue low-side caps fit 13mm ports (0.51")
✅ 5 red high-side caps fit 16mm ports (0.63")

💡 What is an A/C valve cap used for in R134a systems? This handy accessory helps protect ports and keep dirt out during maintenance.
- protects R134a service ports from dust and moisture for longer life
- fits 13mm low-side and 16mm high-side ports on most R134a systems
- easy snap-on installation for quick on-vehicle service