a complete AC refrigerant charge kit to recharge R134a R404a refrigerant, includes 3 way AC manifold gauge, 3PCS 5FT long hose, 2PCS adjustable quick couplers, R134a can tap, ACME adapter and case, use for auto and household air conditioner, to evacuation/vacuum, diagnostic check, refrigerant charging and recovering The 3 way manifold gauge uses brass manifold body, brass parts, anti-corrosion and durability. Color coded scale for R134a R404a on 2-3/4" big dial, plus the sight window on manifold body, gauge (low): -30inHg to 250PSl, red gauge (high): 0 to 500PSI, Celsius unit and a build-in screw in dials for calibration The 3PCS refrigerant charging hoses use rubber nylon resin material and are equipped with 1/4" female brass parts on each side, anti-corrosion and durability. Burst pressure: 3000PSI, Max working pressure: 600PSI. Red hose connects the service port under the red gauge to the red quick coupler, blue to blue, the yellow hose connects the charging port in the middle to the can tap or vacuum pump, NIB contents verifed
