3" 20 - 150 psi Brass 3100 Series Automatic Master Valve | SUP3100300

Key Features

• Normally Open design allows for constant system pressurization
• On demand access for manual irrigation and quick coupler use
• Low seat design decreases pressure loss and improves flow
• Self-cleaning inlet orifice with metering rod allows only "clean water" to enter upper diaphragm chamber offering consistent, trouble-free operation
• 600 lb test nylon reinforced EPDM diaphragm
• The 3100 is the only model that has copper tubing running from the L-fitting on the top of the bonnet to the L-fitting on the top of the solenoid