Welcome to Hendrickson Bros, the best source for pressure regulators, flow controls, drip manifolds, hose modulators, and micro irrigation supplies for agricultural, commercial and landscape irrigation. Our products are available thru professional irrigation wholesalers worldwide. Our professional quality products, great pricing and excellent service, assure your satisfaction. With our complete product line of pressure regulators, flow controls, hose vacuum breakers and much more! We have been serving the Southern California area since the 1970's. As forerunners in the field of drip irrigation, flow controls, and pressure regulation, the creators continue to be actively involved in the research and development of efficient water use products for residential and agricultural applications, with many patented products being used worldwide.