Rainbird PRF075RBY 3/4" Pressure 30 psi Regulating RBY Drip Filter with 200 Mesh Screen Tactic rby filter regulates pressure to a nominal 30 or 40 psi Pf rby filter cap has sealing O-ring and unthreads to provide access to the filter element for easy cleaning 30 or 40 psi pressure regulator is integrated into the filter body