The Mastercool 85113-M 2-Way Aluminum Manifold Gauge Sets 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 80mm silicone dampened gauges for smooth needle movement, displaying R134a refrigerant pressure and temperature correlations (Metric). Manifold and gauges only. Hoses are NOT included with this set.