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. This R410A, R22, R404A Brass 2 Way Manifold Set comes complete with 3 1/8′ Gauges, 3-60′ Hoses and Standard 1/4′ Fittings. Gauges can be easily recalibrated in the field to maintain accuracy.