The Mastercool 88996 2-Way Aluminum Manifold Gauge Set with 96" Hoses with Snap-N-Seal Straight Service Couplers and 2 1/2" Gauges come complete and ready to work. With features like solid extruded aluminum body, large knobs, free-floating piston type valves, silicone dampened gauges that are easily re-calibrated in the field for increased accuracy. Includes set of three 96" hoses with Snap-N-Seal straight service couplers, 2 1/2" silicone dampened gauges for smooth needle movement, displaying R134a refrigerant pressure and temperature correlations in PSI/Kpa and °F.