Netafim Series 80 Globe Control Valves are simple to operate and maintain. Reliable even in harsh conditions. Tight sealing valve with fully supported diaphragm. The 3/4 in flow range is 0.01 - 26 GPM, the 1 in is 0.01 - 44 GPM and the 1 1/2 in is 0.25 - 110 GPM.