{"product_id":"pentair-410016z-xf-union-seal-kit-2pk","title":"Pentair 410016Z 2.5 in. XF Diamond Union Seal Kit, 2-Pack","description":"\u003ch2\u003eRestore a Proper Seal at Pentair XF Pump Union Connections\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Pentair 410016Z replacement Diamond Seal Kit for compatible XF-series pool pumps.\u003c\/li\u003e\n\u003cli\u003eIncludes two 2.5-inch Diamond Seals for servicing the pump union connections.\u003c\/li\u003e\n\u003cli\u003ePentair lists 410016Z for WhisperFlo XF, Max-E-Pro XF, IntelliFlo XF, and IntelliPro XF pump families.\u003c\/li\u003e\n\u003cli\u003eDesigned for the XF union assembly used with the 2.5-inch union adapter and union nut.\u003c\/li\u003e\n\u003cli\u003eExact OEM replacement part for worn, damaged, flattened, or leaking union seals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuick Product Summary\u003c\/h2\u003e\u003cp\u003eThe Pentair 410016Z Diamond Seal Kit is the genuine replacement seal set used at the union connections on compatible Pentair XF-series pool pumps. Pentair identifies 410016Z as the 2.5-inch Diamond Seal Kit and specifies that the kit includes two seals, making it suitable for servicing both union connections when needed.\u003c\/p\u003e\u003cp\u003ePentair’s current replacement-parts documentation lists this same seal kit for WhisperFlo XF and Max-E-Pro XF high-performance pumps, as well as IntelliFlo XF and IntelliPro XF variable-speed pump families. That broader fitment is important because the same XF union design is shared across several Pentair and Sta-Rite pump models.\u003c\/p\u003e\u003cp\u003eThe Diamond Seal sits within the union connection and helps create the watertight interface between the pump and union plumbing. When a seal becomes damaged, distorted, contaminated, or worn, the union connection can begin to leak. Replacing the seal by exact Pentair part number is a much more precise repair than trying to substitute a generic O-ring that may not match the original sealing profile.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cp\u003eServicing a leaking or compromised union connection on a compatible Pentair XF-series pump when the parts diagram calls for 410016Z, or replacing both union seals during pump plumbing service while the unions are already disconnected.\u003c\/p\u003e\u003ch2\u003eWhy the Correct XF Diamond Seal Matters\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMatches the Pentair XF union assembly by exact manufacturer part number.\u003c\/li\u003e\n\u003cli\u003eIncludes two seals so both pump union connections can be serviced from one kit.\u003c\/li\u003e\n\u003cli\u003eSupports the watertight connection between the pump and its union plumbing.\u003c\/li\u003e\n\u003cli\u003eAvoids relying on a generic seal that may not match the XF Diamond Seal profile.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Signs \/ Use This When\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWater is leaking from an XF pump union connection.\u003c\/li\u003e\n\u003cli\u003eThe existing union seal is flattened, distorted, cracked, damaged, or missing.\u003c\/li\u003e\n\u003cli\u003eThe union has been disconnected for service and the old seal no longer seats correctly.\u003c\/li\u003e\n\u003cli\u003eYour Pentair parts diagram identifies 410016Z as the required Diamond Seal Kit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e410016Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379855963\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e2.5-inch Diamond union seal kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e2 seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Pump Families\u003c\/td\u003e\n\u003ctd\u003eWhisperFlo XF, Max-E-Pro XF, IntelliFlo XF, IntelliPro XF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnion System\u003c\/td\u003e\n\u003ctd\u003ePentair XF 2.5-inch union assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Status\u003c\/td\u003e\n\u003ctd\u003eGenuine Pentair replacement part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eCompatibility \/ Fitment Notes\u003c\/h2\u003e\u003cp\u003ePentair lists 410016Z in the replacement-parts diagrams for WhisperFlo XF, Max-E-Pro XF, IntelliFlo XF, and IntelliPro XF pumps. Confirm that your exact pump uses the XF union assembly and that the parts diagram calls for 410016Z before ordering.\u003c\/p\u003e\u003cp\u003eDo not assume 410016Z fits standard WhisperFlo, IntelliFlo, SuperFlo, Challenger, or other pump families simply because they are also made by Pentair. Match the pump family and part number exactly.\u003c\/p\u003e\u003ch2\u003eInstallation \/ Use Notes\u003c\/h2\u003e\u003cp\u003eSwitch off power to the pump before service and isolate the pump from the circulation system as required. Relieve system pressure before loosening union connections. Remove the old seal, clean the union sealing surfaces, position the new 410016Z Diamond Seal correctly, and reassemble the union without damaging or pinching the seal.\u003c\/p\u003e\u003cp\u003eFollow the current Pentair installation and service instructions for the exact pump model. Pentair specifies that these pumps should be installed and serviced by a qualified pool service professional.\u003c\/p\u003e\u003ch2\u003eBuy with Confidence\u003c\/h2\u003e\u003cp\u003eBenchmark Pool Supply helps customers match Pentair pump parts by exact pump family and manufacturer part number. XF union components can look similar to seals used on other pumps, so confirming 410016Z against the pump parts diagram helps prevent leaks and wrong-part orders.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat pumps does Pentair 410016Z fit?\u003c\/h3\u003e\u003cp\u003ePentair lists 410016Z for WhisperFlo XF, Max-E-Pro XF, IntelliFlo XF, and IntelliPro XF pump families.\u003c\/p\u003e\u003ch3\u003eHow many seals are included in the 410016Z kit?\u003c\/h3\u003e\u003cp\u003eThe Pentair parts documentation identifies 410016Z as a Diamond Seal Kit that includes two seals.\u003c\/p\u003e\u003ch3\u003eWhat does the 410016Z Diamond Seal do?\u003c\/h3\u003e\u003cp\u003eIt seals the XF pump union connection where the pump interfaces with the union plumbing, helping maintain a watertight connection.\u003c\/p\u003e\u003ch3\u003eIs 410016Z just a generic pump O-ring?\u003c\/h3\u003e\u003cp\u003eNo. Pentair identifies it specifically as the XF 2.5-inch Diamond Seal Kit. Use the exact replacement part rather than assuming a generic round O-ring is equivalent.\u003c\/p\u003e\u003ch3\u003eDoes 410016Z fit every Pentair WhisperFlo or IntelliFlo pump?\u003c\/h3\u003e\u003cp\u003eNo. The verified fitment is for the XF pump families listed by Pentair. Confirm your exact pump model and parts diagram before ordering.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":43281918492746,"sku":"410016Z","price":14.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6580\/7178\/files\/410016Z.webp?v=1770855241","url":"https:\/\/benchmarkpoolsupply.com\/products\/pentair-410016z-xf-union-seal-kit-2pk","provider":"Benchmark Pool Supply","version":"1.0","type":"link"}