Service:Compatible gases or liquids.Wetted Materials:Flowtube: Borosilicate glass; Float: Brass/SS models: 316 SS; PTFE models: PTFE; Float stops: Brass/SS models: 316 SS; PTFE models: PTFE; End fittings: Brass/SS models: Brass or 316 SS; PTFE models: PTFE; O-rings: Brass/SS models: Fluoroelastomer; PTFE models: PTFE.Temperature Limits:250°F (121°C). PTFE models: 150°F (65°C).Pressure Limits:150 psig (10.34 bar) @ 200°F (93°C); PTFE models: 100 psig (6.7 bar).Accuracy:±7% FS.Repeatability:±0.25% FS.Scale:Direct Reading 127 mm scales for air and water.Turn-Down Ratio:10:1.Connections:Two 3/8″ female NPT.Mounting:Vertical or panel mount.Panel Cutout:Drill two 7/8″ diameter holes 9.469″ (240.5 mm) apart (for panel mount meters only).Valve:6-turn needle (standard on models indicating “with valve”).