The PUMP BAYONET ADAPTOR from BRAVO A600040 is an adjustable adapter fitting which fits the end of a 20mm pump hose. The hose barb is ribbed to keep it on the hose. The PUMP BAYONET ADAPTOR BRAVO A600040 fits most "push-push" style bayonet valves from most manufacturers such as Zodiac, Bombard, Highfield etc. as well as SUP's (Stand Up Paddleboards), kites, and other inflatable watercraft.