Zurn Wilkins 350ASTOSY - 4" Double Check Backflow Assembly with stainless Steel body - flanged OS&Y gate valves

The Zurn Wilkins 350AST Double Check Backflow Preventer features a stainless Steel body and lightweight design.
It provides low hazard protection and resists corrosion.
Multiple shut-off and end connections are available for installation versatility.
4" double check valve assembly with stainless Steel body - flanged OS&Y gate valves.
Short lay-length for small space installation.
Reliable performance and improved flow characteristics from patented compound check, allowing for installation in lower-pressure systems.
Available as 350ASTR for custom length, drop in replacement.
Ideal for any backflow replacement. Lower maintenance costs from corrosion resistance of stainless body.
Available in flanged, grooved, or grooved x flanged end connections for installation versatility.