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AC A/C Manifold Cauge Set — 3-way air conditioning diagnostic manifold gauge set for R404a, R410a, R22 refngerants. Designed for AC charging, diagnostic check and recovery work Necessary tools for HVAC, car air condition maintenance and coolant or Freon adding.Widely used for household air conditioning units; Refngerator, air conditioner ard industrial refrigeration equipment. Easy to operate 3nd install, strong sealing for durability and safety.The solid brass gauge threaded connector and hose fitting is different from the brassplated construction, corrosion-resistant and rustless-ideal for professionalauto mechanics. Freon Charging Hose 4000PSI Burst 800PSI Max W.P. each hose is approx. 5ft <60 inches / 152 cm) with 1/4" SAE fitting-HIGH PRESSURE HOSES with Vi"SAE standard fittings using the highest technology ruboer