1/4 NPT Deluxe FRL trio is a filter, regulator and lubricator all in one. The filter has an automatic overnight drain, the regulator is the relieving type and the lubricator is drip style. This pre-assembled unit has polycarbonate bowls with metal bowl guards and includes a gauge. Offers a Maximum of 150 PSI and 16 SCFM. 40 micron filter element. Product Features:1/4 national pipe threadMaximum of 150 pounds per square inchMaximum of 16 standard cubic feet per minute Operating temperature range of 40 degrees Fahrenheit to 150 degrees Fahrenheit