Tired of getting to much irrigation water in the low spots? Toro Aqua-Traxx Flow Control (FC) gives you uniform output regardless of pressure changes caused by hilly terrain and long runs. Control how much water your plants receive by increasing or decreasing the operating pressure,10-25 PSI. For uniform output you need 8-10psi at the highest point of the field. Multiple laser slit outlet reduces startup clogging & impedes root intrusion. 150 mesh filtration required.