Brass manifolds two easy-to-read gauges with color-coded refrigerant scales and boots includes 5 ft high-pressure hose set 2-1/2 gauges have limited pointer flutter 3-1/8 gauges have no pointer flutter on the manifolds extended valves stems on the Brass versions ensure adequate knuckle clearance reseat able PTFE valves stems packing for durability and leak-proof reliability integrated in the Brass versions aluminum manifolds two easy-to-read gauges with color-coded refrigerant scales and boots includes 5 ft high-pressure hose set no pointer flutter 3-1/8 gauges.