New for 2022 Ninja is proud to release the OFV Fill Valve. This fill valve features a O-ring style seal which removes the need for any sort of thread sealing tape. The fill valve also utilizes a "shoulder" to prevent over tightening and ensure proper pocket depth when installed in the regulator body.  This fill valve can be found on all new Ninja regulators marked OFV above the fill port, it is not compatible with NPT threaded systems.