If you are going to stick with analog gauges, stick with the best. Imperial 800 series deep draw vacuum rated manifold gauges feature four valves which means that vacuum, low side, high side and refrigerant, are individually connected and controlled for productivity, with no need to switch charging lines. A 3/8vacuum port evacuates four times faster than ordinary manifolds. Soft-seat valves require only fingertip pressure to completely close. Full open to close is one full turn. The manifold and hoses are rated for R-410a, R-22 and R-404a In addition, the 800 series has an internal spring that forces the diaphragm completely open during evacuation to decrease evacuation times. Precision gauges have easy to read color scales and provide superior resistance to shock, vibration, and pulsation. Models that include hose feature Imperials Polarshield Hi-Performance hose - UL® approved, 800 PSI working pressure, 4,000 PSI burst pressure.
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