Caleffi North America 574 Series backflow preventer

The new 574 Series testable, reduced pressure zone backflow preventer from Caleffi North America is used in residential and commercial plumbing systems where ASSE 1013-type devices are required by code. The 574 Series prevents accidental contamination of the distribution water supply system when there is a reduction in pressure in the supply system, like a main break or periodic flushing, or an increase in pressure in the building plumbing system, like a missing or nonfunctioning domestic hot-water expansion tank. 414-238-2360;


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