These are double check assemblies. They were produced from approximately 1969-1977. It was redesigned and replaced by the Toro Model BDC. Note there is a different model number for each size. This assembly 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 check assemblies had a plastic modular construction. Check seats are replaceable. All springs are contained when the cover is removed.
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.