Brass hose ferrules are made to create custom hose assemblies. These ferrules have a 1/2 OD and a 0.525 ID. Note that rubber hose tolerances vary up to +/- 1/32 on both the ID and OD, so it is necessary to fit ferrules and fittings to each individual hose being assembled. Product Features:1/2 hose outside diameter.525 hose inside diameterFor best results, use the Milton hose ferrule crimping tool #1626For use with brass ferrules
