A/C DIAGNOSTICS: Professional 3-way air conditioning diagnostic manifold gauge set for R134A, R12, R22, and R502 refrigerants. Designed for checking pressure in AC lines, leak determination, AC charging, recovery work and complete evacuation & recharges.THREE-WAY HOSES: Includes a 3pc, 5-foot freon charging hose with 3 colors for easy recognition, red for high pressure, blue for low pressure, and yellow for the refrigerant bottle.ADVANCED PRESSURE GAUGES: Blue Gauge (low): 0-250 PSI, Red Gauge (high): 0-500 PSI. Extra-strength hoses with burst pressure at 3000PSI, Max working pressure: 600PSI. Celsius degree units with an easy-to-read instrument panel.DURABLE CONSTRUCTION: Made from solid brass, aluminum, PVC, and durable plastic to stand up to heavy use and accidental drops - ideal for professional auto mechanics. Includes a detailed parts diagram and step by step instructions for DIY novices.A COMPLETE TOOL KIT: 1pc 3-way gauge (1/4" male), 3pc hoses (1/4" female), 2pc quick couplers (1/4" male), 1pc adapter (1/4" Male to 1/2" Female) Product Description Orion Motor Tech Manifold Gauge Set For R12, R22, R502, R134A Refrigerants Includes: 1 x Brass Manifold Gauge Set 3 x 5 Feet Freon Charging Hose 2 x Quick Coupler (High & Low) 1 x Adapter Can Tap Not Included Your car’s AC system keeps you warm through frosty winter commutes without a problem. But as spring creeps into summer, that old auto air conditioner just can’t get as cold as it used to. At Orion Motor Tech, we understand how it feels to go without A/C - being stuck in a swampy six-speed below a sweltering summer sun, driving down the highway with every window down. That’s why we’ve built the perfect A/C Manifold Gauge Set to help diagnose and restore your air conditioner back to prime condition - because you don’t need more cars in your life, you need more life in your car - that’s the Orion Motor Tech way. ADVANCED GAUGES Material: Brass & PlasticGauge Fitting: 1/4" MaleGauge Pressure Units: PSI or kg/cm²Temperature Units: Celsius DegreeBurst Pressure: 3000 PSIMax Working Pressure: 600 PSI EXTRA STRENGTH HOSES Hose Length: 5 FeetHose Fitting: 1/4" FemaleBlue and Red Hose: Links the gauge to the couplerYellow Hose: Links the gauge to the Can Tap/Vacuum Pump COUPLERS Material: BrassCoupler Fitting: 1/4" MaleNote: Couplers are un-adjustableNote: Can tap not included Refrigerant Type R1234yf, R134a, R404a R1234yf, R134a, R404a R134A, R12, R22, R502 R134A, R12, R22, R502 R134A, R12, R22, R502 R134A, R12, R22, R502 Low Pressure Gauge -15 to 260 psi -15 to 260 psi -15 to 350 psi -15 to 350 psi -15 to 350 psi -15 to 350 psi High Pressure Gauge -15 to 550 psi -15 to 550 psi 0 to 500 psi 0 to 500 psi 0 to 500 psi 0 to 500 psi Hoses Quantity 3 4 3 3 3 3 Hoses Working Pressure 600 psi (41 bar) 800 psi (55 bar) 600 psi (41 bar) 600 psi (41 bar) 600 psi (41 bar) 600 psi (41 bar) Hoses Burst Pressure 3000 psi (207 bar) 4000 psi (276 bar) 3000 psi (207 bar) 3000 psi (207 bar) 3000 psi (207 bar) 3000 psi (207 bar) Can Tap R1234yf Self-Sealing Can Tap R1234yf Self-Sealing Can Tap Self-Sealing & Piercing Can Taps Piercing Can Tap Piercing Can Tap Piercing Can Tap Quick Coupler Adjustable R1234yf Quick Couplers Adjustable R1234yf & R134a Quick Couplers Adjustable R134a Quick Couplers Adjustable R134a Quick Couplers R134a Quick Couplers Adjustable R134a Quick Couplers Accessary 1 SAE Adapter (¼″ Male to ½″ Female) 1 Valve Core Wrench 1 Dual-Purpose Screwdriver 1 Pair of Gloves 1 SAE Adapter (¼″ Male to ½″ Female) 1 Valve Core Wrench 1 Dual-Purpose Screwdriver 1 Pair of Gloves SAE Adapter (¼″ Male to ½″ Female) SAE Adapter (¼″ Male to ½″ Female) SAE Adapter (¼″ Male to ½″ Female) SAE Adapter (¼″ Male to ½″ Female) Blow-Molded Case