For HPA Fuel Tank Regulator Fill Out Adapter Connector 8mm Male QD. In addition, it is also designed as an outlet adapter for your air/ air to solve the inconvenient problem of connecting your air hose without an on/off refill adapter if you only have a remote fill whip hose, but this adapter is more easy to connect to air hose or air and makers, if they have 8mm female quick disconnects, DIY directly.
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