Economical and dependable brass ferrules enable you to make up custom hose assemblies. These brass ferrules are annealed for ease of crimping and they are brightened and lacquered so that product does not lose color, luster especially by exposure to air, dust and dirt in the machine or on the shelf. Interstate Pneumatics brass ferrules are for pneumatic and hydraulic hoses with Working pressure of up to 500 psi and burst of 2000 psi.