This Nitrous Express pressure gauge reads 0–15 PSI and includes an adaptor to install in 3/8" ports, featuring male 1/8 NPT threads on the gauge itself. The adaptor converts a 3/8 male pipe to a 1/8 female pipe fitting for installation versatility. It’s intended for precise low-range fuel pressure checks where adapting to different port sizes is required.
Nitrous Express Pressure Gauge (0-15 PSI w/Adaptor)