Check the listing for details. Heliotrope Flo-Verter HM 4000 12 VAC Motorized 2" CPVC 3-Way Diverting Valve NOS. Condition: Open box, Made in United States. Listed at 79.95 USD. New old stock valve. Been sitting on the shelf, unused, since 1983! I bench tested it (see video) and it works just fine in both directions. Has some scuffs and dirt from being stored all these years, but it's never been installed, and it still works great. 2" CPVC fittings (see exact measurements in pics). 12V AC operation. The cover screws seem stripped, but they still hold the lid on. This valve was designed for the Heliotrope Solar Pool heating system, but could probably be used in other applications. There is a small bypass hole in the diverter from the factory (which is required on the Heliotrope system), so keep this in mind if you are buying this for another application.