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Zurn RK8-350CK2 is a 2nd check assembly repair kit for Zurn Wilkins 350, 375, 450, and 475 series backflow preventers. The kit fits 8, 10, and 12 inch assemblies and includes seat retainer #1, bolt poppet retainer, washer and O-ring for the poppet bolt, poppet retainer, seat assembly #2 poppet, and washer seat retainer. Accessories include mounting nuts and lubricant. Packaged dimensions are 11.5 x 13.875 x 13.375 inches for waterworks repair applications.
Second check assembly repair kit for 8/10/12 inch Zurn Wilkins 350/375/450/475 models; includes replacement #2 check components, mounting nuts, and lubricant.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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