OutdoorGearPlace PCP Stainless Steel Both End Male Quick Disconnect Adaptor Double Male Fill Nipple(3 PCS)
This is one of the needed items to have in your parts kit. A male to male foster fitting will allow you to move air from one tank to another when used with two fill adapters. This is helpful if you are trying to move air in a big bottle to a smaller more portable bottle. Simply connect each fill adapter to the male to male foster fitting. This is also helpful if you are trying to get a SCBA tank filled, but the people who are trying to fill your tank don’t have a SCBA Fill Adapter to connect to your bottle. In that case you can ask if they can fill using a paintball tank fitting. Then simply connect the male to male fill adapter to the end of your fill adapter (if it is rated for 4500 psi) and let them connect to that and fill your tank. Keep your gear clean with this 8X8"
rated 6500 psi