Standard 1/8 BSPP size for or for PCP air .Can be used between Mini bore hose and SCUBA cylinder charging fitting.Female socket fitting supplied with 1/8 BSPP male thread with cone for connection to a Mini bore fill hose.Available with the UK industry standard 1/8inch BSP Male thread that suits most pump and cylinder fill lines.Safe for use on all - equipment with a max working pressure of 340BAR, 5000psi. Do not maximum working pressure. new socket has been designed to allow connection to " Type" fill nipples that are recessed deeply within the .If you need a coupler release tool, then this socket should overcome that problem as the release is a full 30mm long, as opposed to the 10.5mm long on standard coupler.Connects to Q/C plug, high pressure fill valve, Daystate, , Brocock, , Logun Eagle, PCR1, most and air soft tank side fill nipples and other compatible fill couplers.Suitable for FX deep recess stocks, Daystate and Brocock deep recess stocks early "Swift" and " " type Theoben and Superten quick fills without the need for an additional coupler release tool. Also suits converted air tubes where the fill nipple has been installed after removing the pressure gauge from the recessed end of the air tube.Suits Tank side fill nipples & other compatible fill couplers.1/8inch BSP Male Thread, suits most pump and cylinder fill lines.Safe for use on all - equipment up to and including 300BAR, 4500psi.Max Working Pressure 300BAR, 4500psi.Do not maximum working pressure.Colour:black+gold:Aluminum + copperSize:Height: 47mmPackage Contents:1 x adapterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.