Superior 1″ 3100 Normally Open Brass Master Valve (3100100)

– Normally Open Design Normally Open design allows for constant system pressurization – On-Demand Access On-demand access for manual irrigation and quick coupler use – Improved Flow Low seat design decreases pressure loss and improves flow – Self-cleaning Self-cleaning inlet orifice with metering rod allows only “clean water” to enter upper diaphragm chamber offering consistent, trouble-free operation – Reinforced Diaphragm 600 lb. test nylon reinforced EPDM diaphragm