Hatsan Airgun Fill Probe 1/8th inch BSP male Thread Fitting for Filling PCP Pre charged Rifles with grease and O Rings
[webley PCP Quick Fill Probe]		 £5.95p

Standard 1/8"BSP male thread for direct fitting to a flexible fill line

Replace that lost item, or just keep one as a spare

 complete with a molykote grease and a two spare O Rings