Hilka Professional 2 Piece Female Air Quick Coupler 1/4" BSP Hilka Tools seem like they have been around since the invention of the wheel.With tested quality control that"s second to none and backed with a no quibble guarantee most people in the trade beleive it"s worth paying that little extra to know what your getting.Hilka Tools trusted in the trade.Constructed from high carbon steel and nickel plated for durability, these air couplers are made to a very high standard of quality, easy to use and last a long time.Reduces accidental air line disconnection with a 4 piece ball bearing push down system which holds the line tight when on and is easily disconnected when not in use.For use in the industrial sector for busy factories, trade workshops etc.Specifications 1/4" BSP High carbon steel Nickel plated Female connection Quick and easy connection/disconnection 4 piece ball bearing push down coupler Hilka packaging