It is a cast iron wheel riding on a steel axle without the ball bearings

Dallas Key Reader + Serial Port Kit

Not suitable for ceiling or wall mounted applications

“close” nipple and double tap with 3/8” return port for use with thermal expansion valve kit

Easy to read digital display for accurate bulk dispensing

Milton S-1145 1/4" NPT Mini Heavy Duty Regulator Water based Solution It is a cast iron1 4" NPT Mini Heavy Duty Regulator Maximum inlet pressure of 250 pounds per square inch 1 8" national pipe thread gauge ports Maximum of 25 cubic feet per minute Operating temperature range of 40 degrees Fahrenheit to 120 degrees Fahrenheit 1 4" NPT mini regulator is ideal for air flow applications that call for a compact unit, such as small pneumatic equipment, miniature valves and instruments. Easy to use; simply turn knob to regulate pressure.