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This 3 inch lead free testable double check detector backflow preventer assembly prevents the backflow of pollutants that are objectionable but not toxic
Waterproofing Compatibility & Debris Control: Designed with secure membrane integration in mind
ZB415S-3NH
It features an epoxy-coated cast-iron body for long-term durability
Watts WB-4000 - Part of the WB Series Inserta Tee This 3 inch lead freeThis 53 IN x 44 IN x 44 IN WattsBox enclosure protects backflow prevention assemblies, such as PVBs, double checks, and RPZs, that are subjected to freezing conditions. The enclosure consists of fiberglass construction, providing access through lockable doors and or a hinged lid for testing and certification purposes. It has a means for a permanent anchor and is completely removable for maintenance purposes. It has drain openings that are protected