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The Wilkins 3509-140 is a second check seat retainer designed for 2 1/2" to 4" backflow prevention assemblies, including 350A/375A and 4" 350/375/450/475 models , ensuring reliable backflow protection.
Key Specifications:
NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
US$40
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