4in 475 RPDA SS Body N Pattern w/Spool OSY Gates Flng X Flng

The Zurn Wilkins 475STDAR Stainless Steel n-Pattern Reduced Pressure Detector Assembly is ideal for new or direct drop-in replacement, delivering convenience without compromise. Built for fire protection applications, this detector assembly has a metered by-pass to detect leaks and other water use. The patented AR spool offers flexibility in replacing older models with different lay lengths and maintains agency approvals when installed by the factory.

• For use with potable water pipes with a 4 in. diameter
• OS and Y gate valves; GPM meter
• Superior stainless steel body resists corrosion and extends the life of the product
• Ideal for new or direct drop-in replacement
• Time-tested check and relief valve components ensure easy maintenance and more water system uptime
• Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
• Patented AR spool for drop-in replacements, matching lay-lengths of common n-pattern valves
• AR spool maintains agency approvals when installed by the factory
• Metered by-pass detects leaks and other water use; can be situated on either side of product for ease of installation
• Available in sizes 4 in. through 10-in.