Hooshing 5PCS Brass Flare Cap Assortment Kits, for 1/4" 5/16" 3/8" 1/2" 5/8" Tube OD SAE 45 Degree Flared Pipe Fitting

["Package: 5pcs x Brass FLARE CAPS (Not NPT). 1/4\" OD, 5/16\" OD, 3/8\" OD, 1/2\" OD, 5/8\" OD.(1pc Each Size)","Hex flare tube cap with SAE 45-degree flare female end terminates tube size fitting;Used with copper, brass, aluminum and steel hydraulic tubing that can be flared","The positive nature of the connection with the flare on the tube clamped between the nut and the body makes for extreme dependability and safety","Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability","Suitable for LP and natural gas, refrigeration, and hydraulic applications"]