OrionMotorTech 5FT AC Diagnostic Manifold Freon Gauge Set for R12, R22, R502 Refrigerants, Without Couplers Professional AC diagnostic manifold gauge set for R12, R22 R502 refrigerants. Include 3 color (red, yellow, blue) freon charging hose, high (red) & low (blue) pressure. Easy to read instrument panel. Solid brass connections. 1 year warranty. 2500 PSI burst pressure, 500 PSI maximum working pressure, celsius degree unit. Package Include: 1pc gauge (1/4" male), 3pc hoses (5', 1/4" female). NOTE: there are NO couplers, ACME adapters and instruction in the package. R12 R22 R502 Refrigerants 1 x Brass ManifoldGauge Set 3 x 5 FeetFreon Charging Hose Quick Coupler <span class="a-text-bold">Not Included</span> ACME Adapter <span class="a-text-bold">Not Included</span> Can Tap<span class="a-text-bold">Not Included</span> User Manual<span class="a-text-bold">NotIncluded</span> Material: Brass Gauge Fitting: 1/4&#034; Male Gauge Pressure Units: PSI or kg/cm Temperature Units: Celsius Degree Burst Pressure: 2500 PSI Max Working Pressure: 500 PSI Hose Length: 3 Feet Hose Fitting: 1/4&#034; Female Blue and Red Hose: Link Gauge and Coupler Yellow Hose: Link Gauge and Can Tap/Vacmm Pump Material: Rubber &amp; Plastic