HPA 1/8'' Male Fill valve non-return valve included, makes the fill-up or top-up procedure easier,safer and with less airloss through o-rings.
NO RETURNS WHATSOEVER!
Install into your PCP rifle or pistol, this allows you to fill your PCP using a quick coupler instead of inserting a nipple in a fill port. Can also be used as a replacement part for all American brand name products eg. Crosman,Benjamin,Airforce,Air-Ordnace etc.