Backflow Reference Manual - Ames

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M300 / M300A


M300: 2 1/2", 3", 4", 6", 8", 10" M300A: 2 1/2", 3", 4"


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 Ames M300 and M300A. The M300A model was discontinued in 2008. The mainline assembly is similar in construction to the M200 and M200A. The bypass assembly used for the first two years was the Flomatic DCVE 3/4". The assembly also used the Ames 2000BM3 3/4" or 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.