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NYC plumbers

hot_rod Member Posts: 22,256
Researching BFD requirements for NYC, does anyone know what the B.S. &A. NYC listing is on this vacuum breaker? Board of Standards and Appeals? Is it still a valid listing. It doesn't show up on current Watts tech sheets.

I didn't see a mention at the NYC, Backflow Handbook. This could be an old product, obsolete listing?
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream