YSTOOL Manifold Diagnostic Conditioner Refrigerant Review

This is a AC freon charge kit to recharge R1234yf refrigerant, includes 3 way AC manifold gauge, 3PCS 5FT long hose, 2PCS R1234yf adjustable quick couplers, valve core tool kit and black case. It is a perfect tool kit which is used for auto air conditioner, to evacuation/vacuum, diagnostic check, freon charging and recovery. The 3 way R1234yf manifold gauge uses aluminium manifold body, brass parts, anti-corrosion and durability. Color coded scale for R1234yf on 3" big dial, plus the sight window on manifold body, you can monitor easily on refrigerant charging and recovery. Blue gauge (low): -30inHg to 348PSI, Red gauge (high): 0 to 500PSI, Celsius unit & Fahrenheit unit. There are build-in screws in dials for calibration. The 3PCS refrigerant charging hoses use rubber nylon resin material and are equipped with 12mm Male brass parts on one side and 1/4" Female ones on the other 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. R1234yf quick couplers adopt superior brass and aluminium material, designed with quick connector interface, easy to connect and disconnect all type of R1234yf service port. Only when close the couplers by fully counterclockwise switch the knob, then you can clamp and lift the grip ring to connect and disconnect, insure operating safety. Blue coupler connects AC manifold gauge blue hose to automotive air conditioning suction service port, and red from red to AC discharge service port. There are also a double-headed valve repair wrench and a bag of hose & valve core accessories kit in the case for you. Also we supply 1 year warranty, please feel free to purchase. Please contact us by Amazon message system if there is any question, we will reply in 24 hours.