The Pentair Union Kit (272590Z) is the OEM replacement union kit for the 2-inch, 6-position top mount clamp-on multiport valve used on TA Tagelus filter systems. ⚠️ IMPORTANT: KIT LISTING — MULTIPLE PIECES INCLUDED This listing is a kit, not a single union adaptor. All components required for the union connection are included in one package. The union kit provides the plumbing connection interface between the multiport valve and the filter system's pipe work. A properly sealed union connection allows the valve to be removed and reinstalled for service without disturbing the surrounding plumbing — a critical convenience during backwash valve maintenance or replacement. Damaged or deteriorated union components can result in leaks at the valve connection point; replacing the full kit ensures all mating surfaces and sealing elements are renewed together. Specifications Pentair Part Number 272590Z Quantity Included Kit Fits Into Brand Equipment Line Model / Part Number Notes Pentair Top Mount Multiport Valve — TA Tagelus Filter Valves 263085 2 In. 6 Position Top Mount Clamp-On Multiport Valve Pentair Top Mount Multiport Valve — TA Tagelus Filter Valves 262525 2 In. 6 Position Top Mount Clamp-On Multiport Valve Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering. Pro Tip Before ordering, confirm your multiport valve model number — it is typically stamped or molded on the valve body. This kit is specifically sized for the 2-inch, 6-position clamp-on top mount configuration; ordering the wrong union size will result in a fitment mismatch. If you are replacing the valve itself at the same time, verify that the replacement valve and this union kit share the same connection specification.
