Charging Accessories

Mastercool High-Side Manual red quick connect service coupler easily connects to R-134A service ports. It is made of an all metal construction for extra durability and the patented, spring loaded depressor prevents damage of service valves. The coupler...

Mastercool 134a Oil and UV dye injector. Add refrigerant oil or large amounts of UV leak detection dye. Includes a low side coupler. 1/2" ACME-M x 1/2" ACME-F (R134a). Instruction pdf.

14mm-F X 16mmm quick coupler. Easily snaps on and off the A/C systems service ports under any pressures. Swivel feature enables the user the flexibility to easily access all service ports even in the tightest quarters