Air Input: 35-100 psi (2.4-6.9 bar)Air Output: 1-100 psi (0.1-6.9 bar)Inlet Size: 1/4" (Includes Reducer For 5/32" Tube Adapters - Sold Separately)Foot Valve Dimensions: 6.75" L x 3.8" W x 3.75" H (17.5 x 9.66 x 9.53cm)