R134A Brass Manifold Gauge Set With Brass Standard Couplers

R134a Brass Manifold W/3 60' Nylon Barrier Hoses W/ R134a Couplers. Anti-flutter gauges smooth out needle movement. Yellow hose includes shut-off valve. Piston type free-floating valves reduce o-ring wear. Extra access port for vacuum line. Gauges can be recalibrated to maintain accuracy. Inner nylon layer hoses meet EPA, SAE and UL standards.By Mastercool.