More details about HydroLogic Pressure Regulator 1/2" QC for EvolutionRO 1000:
This solid brass pressure regulator is fully adjustable from 0-125 psi. If you have pressure over 80 psi this is necessary to dial the pressure down to be within the operating parameters of the Evolution-RO1000 or Merlin-Garden Pro or any other filtration system with a 1/2" inlet fitting. Includes 2 quick connect 1/2" fittings for quick and easy install.