These replacement multiport valves from Aqua Ultraviolet® are proprietary parts available only as replacements for Aqua Ultraviolet® Ultima II filters. You must provide the serial number of your Ultima unit.
Replacement 1.5" Multiport Valve
Replacement 2" Multiport Valve
Note: Aqua Ultraviolet requires old multi-port valves be decommissioned. After purchase, you may be required to return old valve or provide photo.