A vacuum controller or vacuum regulator as they are sometimes called is very necessary in trying to control or regulate your vacuum flow. Our Sentinel vacuum controller features direct sensing and is sensitive up to .1 hg of change. Our most popular vacuum regulator is our Sentinel Mark II. It is also direct sensing and features sensitivity to .1 hg. This vacuum regulator has a top dome filter and a main filter giving this vacuum controller maximum efficiency. The Sentinel name is a staple in the vacuum controller industry as it relates to milking equipment. Farm and Ranch Depot has the knowledge and the resources to help you with your vacuum controller purchase along we also have the selection you want. Don’t forget to check out our large line up of vacuum regulators and relief valves from Interlude. Why go anywhere else for all your dairy supplies and milking equipment needs?