The Wilwood pressure gauge fitting adapter converts a 1/8-27 NPT port to 1/4-28, allowing a caliper pressure gauge or similar instrument to be fitted where the port threads differ. It functions as a threaded adaptor to bridge those thread standards for testing or diagnostic use, simplifying gauge installation without modifying the calibrated ports themselves.
Wilwood Fitting Adapter Caliper Pressure Gauge 1/8-27 NPT to 1/4-28