This Hypro Remote Control Unit 3300-0088 comes with a manual by-pass lever and is intended to work with the following Hypro pumps: D70, D115, D135 and D160. The Remote Control Unit features a built in relief valve and a 1" hose barb inlet. The following hose barb outlets can be interchanged onto individual shut-off valves: Three 3/8" hose barb outlets; three 1/2" hose barb outlets; and three 3/4" hose barb outlets.