Backflow Reference Manual - Watts

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757 DCDA / 757A DCDA


757 DCDA: 2 1/2", 3", 4", 6", 8", 10" 757A DCDA: 2 1/2", 3", 4", 6"


This is a double check detector assembly. This model was produced under the Hunter name from 2000-2002. In 2002 Watts bought the Hunter models and began production as the Watts model 757 DCDA and 757A DCDA. These models will also be sold as Ames model C300 and C300A. The mainline assembly is similar in construction to the 757 and 757A. The bypass assembly used for the first two years was the Flomatic DCVE 3/4". The assembly also used the Watts 007M3 3/4" for the bypass unit. Be sure to check the identification information on the bypass assembly to confirm which you have.


Common repair parts are a very small subset of the 10,000 plus items BAVCO stocks. Please feel free to contact us direct at 800-458-3492 for pricing on items not listed or backflow prevention devices.