These models are reduced pressure assemblies. They were produced from approximately 1969-1977. It was redesigned and replaced by the Toro Model BRP. Note there is a different model number for each size. This model uses a vertical piping configuration where water goes in the bottom and comes back down out of the bottom. The body was made of bronze. The internal check and relief assemblies are modular and are made of plastic. The check and relief valve seats are replaceable. All springs are contained when the cover is removed. The relief valve had an external RV sensing line.
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.