2 1/2", 3", 4", 6", 8", 10"

This is a reduced pressure 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 M500. The mainline assembly is similar in construction to the M400. The bypass assembly used is the Flomatic RPZE 3/4" or Watts 919 3/4".

• Printable Specifications and Breakdowns
• Printable Factory Repair Information
• Common repair parts for M400 / M500 2 1/2" - 10"

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.