Available from 0,4 to 3,5 kg/cm2 (10 to 50 psi) to cover every need. The pressure regulators are precision manufactured and feature a patented dampening system, improved plug resistance with a patented singlestrut design, and extended flow range.The benefits include a uniform depth of water application, controlled sprinkler performance (droplet size and throw distance), and flexibility in system operation. Improved plug-resistance with a new single-strut seat design in both the Hi-Flo and Universal Flo models.Chemically resistant materials extended performance & Precision Accuracy Precision components coupled with an internally lubricated o-ring minimize frictional drag and hysteresis.Wide flow range