... function as AIGNEP; Description: Hose coupler (hose connector, brass fitting); (Straight male hose adaptor + nut + spring); Uses: For PU hose connecting, with ... *6mm, 10*8mm, 12*10mm; Material: Brass adaptor, brass nut, steel spring; Surface treatment for brass hose adaptor and nut: Nickel plated or acid washing ... kindly contact us for more details. Hose Coupler (Hose Connector, Brass Fitting)