R410 high pressure charging hose 1.with shut-off ball valve 2.1/4" & 5/16" SAE fitting 3.high quality, 800PSI 1. About Products Quality: Each product is tested before packing, quality guaranteed; Applications: Cutting copper, titanium, stainless steel and aluminum tubing. 2. About factoryExperience: With 21 years experience in refrigeration tools field, the leading manufacturer in China;Good ...