John Guest PI201208S PK10 Reducer Union Acetal, Push to Connect x Push to Connect, For 3 8 in x 1 4 in Tube OD, Gray, 10 PK 6654 100 Grade B Pressure Gauge 100 Grade B Pressure Gauge Type Fire Sprinkler System Gauge Freeze Resistant Movement No Movement Material Polyester Pointer Material Aluminum Lens Material Gauge Plastic Pressure Range Type Pressure Case Construction ABS Plastic Primary Scale Units psi Process Connection Location Bottom Accuracy Scale Mid Scale Compatible Process Media Air Compatible with Model 907791 NSF ANSI 61 Specific Pipe Fitting Shape Reducing Union Basic Pipe Fitting Material Plastic System of Measurement Imperial Application Food Processing Maximum Operating Pressure 150 psi