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Zurn Industries Backflow Prevention Preventers
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Zurn Industries 4 In. 475St Reduced Pressure Principle Assembly

SKU: 4-475ST

$13,799.00 

Price

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Product Details

Zurn Industries 4-475ST

The Zurn Wilkins 475ST Stainless Steel n-Pattern Reduced Pressure Principle Assembly is ideal for new or direct drop-in replacement, delivering convenience without compromise. Compact and reliable, this reduced pressure principle assembly withstands the corrosive effects of water and protects against both backsiphonage and backpressure of polluted water into the potable water supply. The 475ST model is approved for applications requiring flow vertical up and vertical down. The patented AR spool offers flexibility in replacing older models with different lay lengths and maintains agency approvals when installed by the factory.


  • Collection 475ST
  • UPC 612052274560
  • Online Product ID 6194650
  • Length 35.13"
  • Width 32"
  • Height 38"
  • Made In USA
  • Low Lead Compliant yes
  • Material Ductile Iron,Stainless Steel
  • Unit Of Measure Each
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Minimum Order Quantity 1
  • Shipping L:35"x W:30.5"x H:38"

Additional information

  • For use with potable water pipes with a 4 in. diameter
  • NRS shut-off valves
  • Superior stainless steel body resists corrosion and extends the life of the product
  • Approved for applications requiring flow vertical up and vertical down
  • 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
  • Backflow setter eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost
  • Available in sizes 4 in. through 10 in.

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