This is a kind of professional 3-way air conditioning diagnostic manifold gauge set. Designed for AC charging, diagnostic check and recovery work. Suitable for fixing air conditioning systems in car and other cooling systems such as refrigerators. You can have a try. Features: Professional 3-way air conditioning diagnostic manifold gauge set. Designed for AC charging, diagnostic check and recovery work. Include 3pcs 0.8m long freon charging hose, 3 color for easily recognition, red for high pressure, blue for low pressure, yellow for refrigerant bottle. Equipped with one hook, easy to hangs on your car or any other place. Made of solid brass aluminum PVC plastics, so it can be much more fine durablity and stand up to frequent use and accidental damage, suitable for professional auto mechanics. Read easily with extra-large windows, display temperature in Celsius and give readings. Suitable for fixing air conditioning systems in car and other cooling systems such as refrigerators. Specifications: Name: Gauge Material: Bass + PVC Color: yellow + red + blue Blue Gauge (low): 0-250 PSI Red Gauge (high): 0-500 PSI Burst pressure: 3000PSI Max working pressure: 600PSI Mainbody size: 170 * 120 * 50mm / 6.69 * 4.72 * 1.97in Hose length: 0.8m Item weight: 931g / 2.05lb Package size: 335 * 185 * 80mm / 13.19 * 7.28 * 3.15in Package weight: 1183g / 2.61lb Package List: 1 * 3-way Gauge (1/4" Male) 3 * Hoses (1/4" Female) 2 * Quick Couplers (1/4" Male) 1 * ACME Adapter (1/4" Male to 1/2" Female)