49974 a2l 4-valve test and charging manifold Gauge For R32/R410A/R454B

49974 A2L 4-Valve Test and Charging Manifold

• 【A2L Safety Adaptation & Broad Refrigerant Compatibility】 49974 A2L 4-valve test and charging manifold is safe for mildly flammable refrigerants R32, R410A, R454B. It features dual color gauges with multi-refrigerant temperature scales, compatible with new and traditional refrigerants for all HVAC service jobs.
• 【4 Independent Valves + 3/8" Big Vacuum Port, Higher Working Efficiency】The 49974 manifold adopts a four-port design that connects high/low pressure, refrigerant tank and vacuum pump simultaneously. It eliminates frequent hose removal, reduces leak risks and saves over 30% working time. The 3/8" oversized vacuum port accelerates deep evacuation and prevents ice clogging.
• 【Built-in Sight Glass & 1% High Precision Large Gauges】 The test and charging manifold 49974 features a transparent sight glass to monitor refrigerant liquid/gas status for accurate charging. It is equipped with 3-1/8 inch (80 mm) steel shell gauges delivering ±1% accuracy. A front calibration hole enables fast on-site calibration without disassembly.
• 【Heavy-Duty Aluminum Manifold & Humanized Structure】 The 49974 adopts an integral forged aluminum body that is shock-resistant and leak-proof. Blue low-pressure and red high-pressure color markings prevent misconnection. Large non-slip knobs allow precise flow regulation. A stainless steel hanging hook enables hands-free reading. Universal 1/4" SAE brass threaded ports fit most HVAC accessories.
• 【All-Round Refrigeration Service Tool 】 The 4-valve test and charging manifold only with 3-1/8" (80mm) gauges is designed for central AC, air-to-water heat pumps, chillers and cold rooms. It is suitable for pressure inspection, vacuum pumping, refrigerant charging/recycling and system troubleshooting for commercial and residential refrigeration equipment.