{"product_id":"pentair-8-50-triton®-ii-black-buttress-thread-closure-kit-154856z","title":"Pentair 8.50\" Triton II Black Buttress Thread Closure Kit 154856Z","description":"\u003ch2\u003ePentair Triton II 8-1\/2\" Black Buttress Thread Closure Kit | 154856Z\u003c\/h2\u003e\n\n\u003cp\u003e\n    The \u003cstrong\u003ePentair 154856Z Triton II Closure Kit\u003c\/strong\u003e is a genuine OEM\n    replacement assembly designed for compatible Pentair Triton II and Triton C\n    swimming pool sand filters.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    Featuring an \u003cstrong\u003e8-1\/2-inch buttress-thread closure\u003c\/strong\u003e with a\n    black finish, this replacement kit is used to secure the large top access\n    opening of compatible sand filter tanks.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    The closure provides access to the internal filter components for\n    inspection, maintenance, and filtration media replacement while helping\n    maintain a properly sealed filter tank during operation.\n\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eGenuine Pentair OEM:\u003c\/strong\u003e\n        Original manufacturer replacement closure kit.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003e8-1\/2\" Buttress Thread:\u003c\/strong\u003e\n        Designed for compatible Pentair sand filters with the larger\n        buttress-thread tank opening.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eBlack Finish:\u003c\/strong\u003e\n        Matches the specified Pentair closure configuration.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eTriton II Compatibility:\u003c\/strong\u003e\n        Fits select TR40, TR50, TR60, TR100, and TR140 filters.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eCommercial Filter Applications:\u003c\/strong\u003e\n        Compatible with specified Triton C and C-3 filters.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eTop Access Closure:\u003c\/strong\u003e\n        Secures the filter tank opening while allowing access for maintenance.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eReplacement Assembly:\u003c\/strong\u003e\n        Designed to replace damaged or deteriorated compatible closures.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eOEM Fitment:\u003c\/strong\u003e\n        Manufactured for filters requiring Pentair part number 154856Z.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pentair\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 154856Z\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrevious Part Number:\u003c\/strong\u003e 154856\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDistributor Part Number:\u003c\/strong\u003e PAC-051-2821\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Sand Filter Closure Kit\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClosure Size:\u003c\/strong\u003e 8-1\/2 Inches\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Buttress Thread\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible Filter Series:\u003c\/strong\u003e Triton II, Triton C, Triton C-3\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Sand Filter Tank Top Closure\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDistributor-Listed Weight:\u003c\/strong\u003e 3.08 lb\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShipping Dimensions:\u003c\/strong\u003e 17.25\" x 10\" x 4.5\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 788379669553\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSelling Quantity:\u003c\/strong\u003e 1 Closure Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Pentair Sand Filters\u003c\/h3\u003e\n\n\u003cp\u003e\n    The Pentair 154856Z closure kit is listed for use with the following\n    compatible Pentair sand filter models:\n\u003c\/p\u003e\n\n\u003ch4\u003ePentair Triton II Sand Filters\u003c\/h4\u003e\n\n\u003cul\u003e\n    \u003cli\u003ePentair Triton II TR40\u003c\/li\u003e\n    \u003cli\u003ePentair Triton II TR50\u003c\/li\u003e\n    \u003cli\u003ePentair Triton II TR60\u003c\/li\u003e\n    \u003cli\u003ePentair Triton II TR100\u003c\/li\u003e\n    \u003cli\u003ePentair Triton II TR140\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003ePentair Triton Commercial Sand Filters\u003c\/h4\u003e\n\n\u003cul\u003e\n    \u003cli\u003ePentair Triton TR100C\u003c\/li\u003e\n    \u003cli\u003ePentair Triton TR140C\u003c\/li\u003e\n    \u003cli\u003ePentair Triton C-3 TR100C-3\u003c\/li\u003e\n    \u003cli\u003ePentair Triton C-3 TR140C-3\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eCompatibility Notice:\u003c\/strong\u003e\n    Confirm the original closure size, thread design, filter manufacturing\n    date, and replacement part number before ordering.\n    Some older Triton filters use different closure assemblies.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhat Does the Triton II Closure Assembly Do?\u003c\/h3\u003e\n\n\u003cp\u003e\n    The Pentair Triton II sand filter uses a sealed pressure tank containing\n    filtration media and internal water distribution components.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    The closure assembly secures the large access opening at the top of\n    the tank, allowing qualified service personnel to inspect internal\n    components and maintain the filter.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    The correct closure assembly and sealing components are essential\n    for maintaining the filter's pressure boundary during operation.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Replace Your Filter Closure\u003c\/h3\u003e\n\n\u003cp\u003e\n    Replacement may be necessary if the original closure becomes cracked,\n    distorted, or otherwise damaged.\n\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003eVisible cracks in the closure assembly\u003c\/li\u003e\n    \u003cli\u003eDamaged or stripped buttress threads\u003c\/li\u003e\n    \u003cli\u003eBroken closure components\u003c\/li\u003e\n    \u003cli\u003eWarped or distorted closure surfaces\u003c\/li\u003e\n    \u003cli\u003eDamage discovered during filter maintenance\u003c\/li\u003e\n    \u003cli\u003eDifficulty properly securing the existing closure\u003c\/li\u003e\n    \u003cli\u003eLeaks traced to a damaged closure or sealing surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e\n    Water leaking around the filter closure may also result from a damaged\n    O-ring, dirty sealing surfaces, or improper assembly.\n    Inspect the complete closure system before ordering replacement parts.\n\u003c\/p\u003e\n\n\u003ch3\u003e8-1\/2\" Buttress Thread vs. 6\" Filter Closures\u003c\/h3\u003e\n\n\u003cp\u003e\n    Pentair manufactures different closure assemblies for Triton sand filters.\n    These components are not interchangeable simply because they are\n    used on the same filter series.\n\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n        \u003cstrong\u003e154856Z:\u003c\/strong\u003e\n        8-1\/2\" black buttress-thread closure kit.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003e6\" Closure Assemblies:\u003c\/strong\u003e\n        Smaller closure configurations used on specified filter models\n        and production generations.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n    Buttress threads have a different profile from conventional V-shaped\n    threads. The replacement closure must match the tank's original\n    thread configuration.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eImportant:\u003c\/strong\u003e\n    Do not attempt to install an incompatible closure or modify the filter\n    tank threads to accommodate a different assembly.\n\u003c\/p\u003e\n\n\u003ch3\u003eInstallation and Replacement\u003c\/h3\u003e\n\n\u003cp\u003e\n    Sand filters operate under pressure, and servicing a tank closure\n    requires special safety precautions.\n\u003c\/p\u003e\n\n\u003col\u003e\n    \u003cli\u003e\n        Turn off the swimming pool circulation pump and disconnect\n        electrical power.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Disable automatic equipment operation to prevent unexpected startup.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Open the filter's air relief system as directed by Pentair.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Completely relieve all internal filter pressure.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Verify that the pressure gauge indicates zero.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Follow Pentair's service procedure for removing the existing closure.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Inspect the filter tank opening and threads for damage.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Confirm that the replacement closure matches the original assembly.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Install the replacement closure and required sealing components\n        according to Pentair's instructions.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Complete the manufacturer's required closure inspection\n        before returning the system to service.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Restore circulation only after the assembly has been\n        properly inspected and secured.\n    \u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eSafety Warning:\u003c\/strong\u003e\n    Never loosen, remove, or adjust a filter closure while the system\n    is pressurized. A damaged or improperly installed closure can\n    separate from the filter tank and cause serious injury.\n\u003c\/p\u003e\n\n\u003ch3\u003eRelated Pentair Triton II Replacement Parts\u003c\/h3\u003e\n\n\u003cp\u003e\n    Aqua Pool Supply carries additional Pentair Triton II replacement\n    components for filter maintenance and repairs.\n\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/pool-filter-parts\/products\/pentair-2-triton-ii-bulkhead-kit-154714z\" title=\"Pentair 154714Z Triton II 2-Inch Bulkhead Kit\"\u003e\n            \u003cstrong\u003ePentair 154714Z – Triton II 2\" Bulkhead Kit\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Genuine Pentair replacement bulkhead assembly for compatible\n        Triton II and Triton C sand filters.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/parts-list-pentair-triton-ii-tr60-filter\" title=\"Pentair Triton II TR60 Filter Parts Diagram\"\u003e\n            \u003cstrong\u003ePentair Triton II TR60 Parts Diagram\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Identify replacement closure components, pressure gauges,\n        O-rings, laterals, and other TR60 filter parts.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/parts-list-pentair-triton-ii-tr140-filter\" title=\"Pentair Triton II TR140 Filter Parts Diagram\"\u003e\n            \u003cstrong\u003ePentair Triton II TR140 Parts Diagram\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Explore replacement components for compatible TR140\n        sand filter assemblies.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Pentair Sand Filters\u003c\/h3\u003e\n\n\u003cp\u003e\n    Explore our\n    \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/pentair-sand-filters\" title=\"Pentair Sand Filters at Aqua Pool Supply\"\u003e\n        \u003cstrong\u003ePentair Sand Filters\u003c\/strong\u003e\n    \u003c\/a\u003e\n    collection for Triton II, Tagelus, Sand Dollar, and other\n    Pentair filtration equipment.\n\u003c\/p\u003e\n\n\u003ch3\u003eProduct Maintenance Recommendations\u003c\/h3\u003e\n\n\u003cul\u003e\n    \u003cli\u003eInspect the filter closure for visible damage during maintenance.\u003c\/li\u003e\n    \u003cli\u003eMonitor the closure area for leaks.\u003c\/li\u003e\n    \u003cli\u003eInspect sealing surfaces and O-rings when servicing the filter.\u003c\/li\u003e\n    \u003cli\u003eNever force damaged or mismatched threads together.\u003c\/li\u003e\n    \u003cli\u003eUse only manufacturer-approved replacement components.\u003c\/li\u003e\n    \u003cli\u003eFollow Pentair's instructions for closure assembly and servicing.\u003c\/li\u003e\n    \u003cli\u003eNever operate a filter with a damaged or improperly secured closure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eIncludes:\u003c\/strong\u003e\n    One (1) Genuine Pentair 154856Z 8-1\/2\" Black Buttress Thread\n    Closure Kit for compatible Triton sand filters.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eImportant:\u003c\/strong\u003e\n    This listing is for the closure kit, not a complete sand filter.\n    Filter tanks, valves, plumbing, and filtration media are not included.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e\n    Designed for specified Pentair Triton II, Triton C, and Triton C-3\n    sand filters requiring the 8-1\/2-inch buttress-thread closure.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eSafety:\u003c\/strong\u003e\n    This component is part of a pressurized filter assembly.\n    Installation and servicing must follow Pentair's instructions.\n    Never open the filter while pressurized.\n\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52279745642812,"sku":"154856z","price":229.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-850-triton-ii-black-buttress-thread-closure-kit-154856z-pool-filter-parts-3550920.png?v=1793227030","url":"https:\/\/aquapoolsupply.com\/products\/pentair-8-50-triton%c2%ae-ii-black-buttress-thread-closure-kit-154856z","provider":"Aqua Pool Supply","version":"1.0","type":"link"}