https://trutechtools.com/fieldpiece-gs322f-analog-gauge-set-3-port/
Fieldpiece GS322F Analog Gauge Set, 3 Port Manifold for R22, R32, R454B, and R410A
Fieldpiece GS322F 3-port analog manifold gauge set with multi-refrigerant scales, piston valves, sight glass, and rugged protective housing for HVACR service.