The Zurn Wilkins 450STDA Stainless Steel n-Pattern Double Check Detector Assembly (DCDA) withstands the corrosive effects of water and is ideal for new or direct drop-in replacement delivering convenience without compromise. For fire protection applications , with a metered by-pass to detect leaks and other water use.

• Superior stainless steel body to resist corrosion and extend the product life
• Smaller footprint for 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
• Can utilize the new backflow setter which eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost
• Available in sizes 4"-10"
• OS&Y Gate Valves (Standard)
• Butterfly Valves (Optional)
• Metered by-pass to detect leaks and other water use
• Superior stainless steel body to resist corrosion and extend the product life