Watts RK 719-CK4 1 - Part of the RK-LF719 Series Woven Fabric The herbicide used is called

The herbicide used is called Trifluralin and is safe for trees as it only stops root growth wherever the fabric is placed

For valve sizes 1 1/4-2 IN

suitable for integration with conventional mechanical systems

The Zurn ZF812 is engineered for chemical-processing and industrial applications requiring durable

Z530-4NH-TS

Watts RK 719-CK4 1 - Part of the RK-LF719 Series Woven Fabric The herbicide used is calledThis first or second check repair kit provides all the parts necessary to repair or replace first or second check on 1 inch double check valve assembly backflow preventer, model 719. This kit consists of disc holder, spring, and cover O ring. Features Factory replacement kit No special tools required for servicing All parts are made of high quality materials Serviceable in the field Specifications Compatible Series or Model 719 Compatible Size Used On