The herbicide used is called Trifluralin and is safe for trees as it only stops root growth wherever the fabric is placed
Specifications Body Finish Nickel Body Material Brass Brand Watts Buy American Act Compliant NO Control Type Cross Handwheel EAN 098268493207 Frost Free Yes Inlet Connection Size 1/2 IN Inlet Connection Size-Metric 15 MM Inlet Connection Type Solder or Male IPS Inlet Thread Type NPT Lead Free NO Outlet Connection Size 3/4 IN Outlet Connection Type Male Threaded Outlet Thread Type GHT Part Number 0723164 Series FH Type Kit Wall Thickness 12 IN With Vacuum Breaker No Specification Sheet - FH
Heavy-duty frame and grate system with four-corner lock-down to handle dynamic loads
1/2 inch dual copper straight adapters for 1/2 inch male NPT or 1/2 inch solder end connections to receive tubing and 3/4 inch hose connections
and a removable sediment bucket for simplified maintenance
Watts 909AGF - Part of the Air Gaps Series mainline-siltfence The herbicide used is calledThis air gaps for reduced pressure zone assembly, 1 1 4 to 3 IN series 009 and 909, 1 1 4 to 2 IN series 009M1, and 2 IN 009M2, provide an unobstructed, physical separation between the discharge end of a potable water supply line and an open receiving vessel. The installation of an air gap and drain line are recommended on reduced pressure zone assemblies. It can be installed vertically or horizontally (vent elbow required for vertical installation).