These multiport valves are complete with bulkhead unions for simple installation. 1-1/2 inch side mount multiport valves, available in threaded or socket ports, are rated at 100 GPM to accommodate most installations. The 2 inch side-mount MPV is rated at 125 GPM. Top mount valves are available in 1-1/2 inch 8-position or 2 inch 6-position. All valves are 100% factory tested.