This GDR Series Regulator provides reliable and precise pressure control in the most demanding applications i.e. Brewery, Distilling, & Grow.  Optimized spring design with unique venturi design assures high flow with extremely low droop characteristics.  Solid, non tied diaphragm and all brass construction will provide leak-free and long-lasting performance.  This regulator is fully balanced to virtually eliminate outlet pressure fluctuations due to inlet pressure variations.