Unicorn 3 Way AC Manifold Gauge Set with Hoses Couplers & Adapter Refrigerant AC Gauges Automotive AC Gauge for R22 R410A R134A

3 Way AC Manifold Gauge Set-- 3 way 2 valves 2 gauges manifold refrigerant gauge is wonderful for automobile and domestic air conditioners' evacuation (vacuum) and diagnostic check, R134a R404a refrigerant charging and recovery work. 2-3/4" large two-color meter with color scale, blue low pressure gauge range: -30inHg~250PSI, red high pressure: 0~500PSI. The visual window on the premium corrosion-resistant brass manifold allows you to easily monitor refrigerant charging and recovery.3 5FT Color Hoses-- AC charging hoses use rubber resin (corrosion resistance, good air tightness) and built-in nylon increases its stress resistance: Maximum working pressure 600PSI, bursting pressure 3000PSI. Each side is fitted with 1/4" Female brass fittings: the straight fittings of red hose connects HP red gauge side 1/4" Male flare, the angled one to red quick coupler, LP blue gauge - blue hose - blue quick coupler, and yellow hose connects middle charging port to can tap or recovery unitAdjustable R134A Quick Couplers-- The R134a AC quick connectors are made of high quality brass and aluminum. They are designed to lock accurately with ball bearings and compatible with all models of standard R134A service ports for fast connection. Blue one for AC low side suction service port, and red one for AC high side discharge service port. Clockwise open and anticlockwise close easily by twisting the adjustable knob, reduce Schrader valve wear and ensure no leak when connect/disconnect.2PCS R134a Can Taps-- Piercing type and self-sealing type R134a can taps are both packed in this air conditioning manifold gauge kit. R134a can taps with 1/2" ACME Female thread interface can screw to fix on 1/2" ACME Male thread of refrigerant bottle opening, then swivel T type knob: for the piercing type, the internal pin can pierce the opening to open the freon can, and for the self-sealing type, the internal pin can press or release the self-sealing valve for open or close the freon can