The Primefit Air Filter Regulator Combo is designed for use with any compressor, air tank or air system to clean and regulate constant air pressure to your tools and equipment. The locking regulator knob regulates and maintains pressure between 0-160 PSI, and can support a maximum inlet pressure of 200 PSI. The FR1203G is a Oversized 1/2" Body until made for larger systems where regulation is required without significant presure or CFM drop and provides 140-SCFM at 100-PSI. A mounting bracket is included with the combo.