NDS 1520-20 2 Inch Swing Check Valve Slip x Slip Type_Sprinklers This delay can range from

This delay can range from a few seconds (to permit slow-closing valves additional time to close) to a much longer period of time (to allow pressure tanks time to recharge)

the Swiss precision

Rugged cast iron casing - for years of service and reliability

very tough

The Rainbird Rotor Adjustment Tool is used to adjust and lift Rainbird rotors including 3500

NDS 1520-20 2 Inch Swing Check Valve Slip x Slip Type_Sprinklers This delay can range fromSwing Check Valve is used to keep water in your system after it's turned off, and helps prevent back flow. Works well with systems that are on sloped ground. Specifications: Connection Size: 2 Inlet Thread: Slip x Slip