The Nitrous Express N2O flo-thru pressure gauge kit pairs a high-accuracy nitrous pressure gauge (0–1500 PSI) with a billet aluminum manifold that has two 1/8 NPT ports. The manifold lets you install the gauge inline with a 4AN nitrous line while providing an extra port for another 1/8 NPT accessory. It’s a compact solution for monitoring nitrous system pressure and adding secondary instrumentation.
Nitrous Express N2O Flo-Thru Pressure Gauge (0-1500 PSI) 4AN