Manloney LLC Universal 1/8 NPT to 8MM Quick-disconnect Foster Fill Adapter HPA Paintball CO2 Refill Air System Plug Connector Fittings (Type-3) Description: This is helpful if you are trying to move air in a big bottle to a smaller more portable bottle, to get a SCBA tank filled, to move air from one tank to PCP air gun or paintball. Simply connect each fill adaptor to the female and male thread air tool fittings, a paintball tank fitting. Feature: - Material: Stainless steel - Size: 8mm quick plug, 1/8 inch NPT thread - Working Pressure: 4500psi - Max Pressure Control: 6000psi Package: 1x 8mm male plug to 1/8 NPT male thread adapter 1x 8mm female plug to 1/8 NPT female thread adatper