Model "764P" Pneumatic Pressure Controller; 3-15 PSIG Output,Bronze Control Housing (PNeu Circuit),;1/4" Npt PNeumatic Connection; SST Wetted Const; 316SST Upper & Lower Casing & Diaphragm; 450 To 2500 PSIG Pressure Range; 1/4" Npt Process Connection @ Center Of Upper Diaph Casing; Tfe Diaphragm Seal (Opt-75), Silicon Fill, 316SST Housing, 1/2" Npt;Process Connection; Standard/Commercial Painting & Cleaning