• R1234yf high and low side couplers with extended disconnect protection sleeve meet SAE J639 & J2888
• 1/4 FL-F x 1/2 ACME LH vacuum pump adapter
• Easy to recalibrate 3 1/8” gauges to ensure accuracy
• Bar/PSI units of measure
• Red & blue nylon barrier hoses with 12mm-M fittings on both sides meet SAE J2888, EPA, SAE & UL standards

Mastercool is the leading manufacturer of professional quality A/C manifold gauge sets. Our manifold gauge sets are constructed of the finest materials and machined with precision to the highest quality standards. At Mastercool, every manifold we build is built to last.

1. Low side (blue) hose. (12mm-M fittings on both sides meet SAE J2888, EPA, SAE & UL standards)

2. High side (red) hose. (12mm-M fittings on both sides meet SAE J2888, EPA, SAE & UL standards)

3. Service (yellow) hose. (Yellow hose 12mm fitting on one side and 1/2 x 16 LH acme on the other meets SAE J2844)

4. Compressor discharge service valve. (R1234yf couplers with extended disconnect protection sleeve meets SAE J639 & J2888)

5. Compressor suction service valve. (R1234yf couplers with extended disconnect protection sleeve meets SAE J639 & J2888)