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This valve is a practical choice for professionals requiring a dependable
two front casters
Don’t let large spaces or tough jobs slow you down
Certified ANSI Type 2 standards
Construction jobsite cleaning
12" Double Check OSY LF Valve for Fire Protection Systems Enviro Safety Products This valve is a practicalThe 12" Double Check OSY LF Valve is a specialized backflow preventer designed for fire protection and water supply systems that require stringent contamination control. Ideal for facility managers and hydraulic engineers, this valve ensures safe potable water by preventing backflow in commercial and industrial fire safety networks while offering clear operation visibility and easy maintenance. Robust Construction: Crafted with a cast iron main body