OrionMotorTech 5FT AC Diagnostic Manifold Freon Gauge Set for R134A R12, R22, R502 Refrigerants, with Couplers and Acme Adapter Professional 3-way air conditioning diagnostic manifold gauge set for R134A R12 R22 and R502 refrigerants. Designed for AC charging, diagnostic check and recovery work. Include 3pc 5FT extra long freon charging hose, 3 color for easily recognition, red for high pressure, blue for low pressure, yellow for refrigerant bottle. Blue Gauge (low): 0-250 PSI ___ Red Gauge (high): 0-500 PSI ___ Burst pressure: 3000PSI ___ Max working pressure: 600PSI ___ Celsius degree unit with easy to read instrument panel. Made from solid bass + aluminum + PVC + plastic, stands up to heavy use and accidental drops, ideal for professional auto mechanics. Include a detailed parts diagram and step by step instructions to help novice. You will get: 1pc 3-way gauge (1/4" male) ___ 3pc hoses (1/4" female) ___ 2pc quick couplers (1/4" male) ___ 1pc ACME & tank adapter (1/4" Male to 1/2" Female) R12, R22, R502, R134A Refrigerants 1 x Brass Manifold Gauge Set 3 x 5 Feet Freon Charging Hose 2 x Quick Coupler (High &amp; Low) 1 x ACME Adapter Can Tap N<span class="a-text-bold">ot Included</span> User Manual<span class="a-text-bold">NotIncluded</span> Material: Brass &amp; Plastic Gauge Fitting: 1/4&#034; Male Gauge Pressure Units: PSI or kg/cm Temperature Units: Celsius Degree Burst Pressure: 3000 PSI Max Working Pressure: 600 PSI Hose Length: 5Feet Hose Fitting: 1/4&#034; Female Blue and Red Hose: Link Gauge and Coupler Yellow Hose: Link Gauge and Can Tap/Vacmm Pump Material: Brass Coupler Fitting: 1/4&#034; Male ACME Adapter Fitting: 1/4&#034; Male to 1/2&#034; Female <span class="a-text-bold">Note: </span>Couplersare unadjustable <span class="a-text-bold">Note:</span>Can tap not included