{"product_id":"haywardvl40t32sandfilterstandpipeunderdrainassemblyvlx4001ahppvlx4001a","title":"Hayward VL40T32 Sand Filter Stand Pipe \u0026 Underdrain Assembly | VLX4001A","description":"\u003cdiv\u003e\n  \u003ch2\u003eHayward VLX4001A Stand Pipe \u0026amp; Underdrain Assembly (VL Series Sand Filters)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    Hayward \u003cstrong\u003eVLX4001A\u003c\/strong\u003e is a genuine replacement \u003cstrong\u003estand pipe and underdrain assembly\u003c\/strong\u003e for select\n    Hayward \u003cstrong\u003eVL Series\u003c\/strong\u003e sand filters (commonly referenced for the \u003cstrong\u003eVL40T32\u003c\/strong\u003e). This internal\n    assembly helps route water through the filter bed and collect filtered water for return to the pool. Replace it if\n    the original underdrain\/standpipe is cracked, broken, or allowing sand to pass into the pool.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePart Number: VLX4001A\u003c\/li\u003e\n    \u003cli\u003eBrand: Hayward\u003c\/li\u003e\n    \u003cli\u003eType: Sand filter internal stand pipe \u0026amp; underdrain assembly\u003c\/li\u003e\n    \u003cli\u003eDesigned for compatible Hayward VL Series sand filters (verify model fit before ordering)\u003c\/li\u003e\n    \u003cli\u003eHelps support proper filtration flow path and filtered-water collection\u003c\/li\u003e\n    \u003cli\u003eGenuine replacement part for proper fit and reliability\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Symptoms This Part Can Help Fix\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eSand returning to the pool through the returns\u003c\/li\u003e\n    \u003cli\u003eReduced filtration performance due to damaged internal collection components\u003c\/li\u003e\n    \u003cli\u003eCracked or broken stand pipe\/underdrain discovered during sand change\u003c\/li\u003e\n    \u003cli\u003eInternal leakage or poor sealing at the standpipe connection (model-dependent)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eConfirm your exact filter model and internal configuration before ordering (commonly used on VL40T32).\u003c\/li\u003e\n    \u003cli\u003eShut off pump power and relieve filter pressure completely before opening the filter.\u003c\/li\u003e\n    \u003cli\u003eBest replaced during a sand change or when the filter is emptied for service.\u003c\/li\u003e\n    \u003cli\u003eInspect the tank for cracks and check for worn O-rings\/clamps while the filter is open.\u003c\/li\u003e\n    \u003cli\u003eRefill with the correct sand type and amount for your filter model after installation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=VLX4001A\"\u003eHayward VLX4001A\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20VL%20series%20sand%20filter%20parts\"\u003eHayward VL Series Sand Filter Parts\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=VLX4002A\"\u003eHayward VLX4002A Clamp Hardware \u0026amp; Tank O-Ring Kit\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=pool%20filter%20sand\"\u003ePool Filter Sand\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=pool%20filter%20o-ring%20lubricant\"\u003ePool-Safe O-Ring Lubricant\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20sand%20filter%20valve%20parts\"\u003eHayward Sand Filter Valve Parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eIf you see sand in the pool, inspect the underdrain assembly and laterals (if applicable) during service.\u003c\/li\u003e\n    \u003cli\u003eBackwash as needed and avoid over-backwashing, which can reduce filtration quality.\u003c\/li\u003e\n    \u003cli\u003eDuring sand changes, inspect internal parts for cracks or brittleness and replace as needed.\u003c\/li\u003e\n    \u003cli\u003eKeep the valve clamp and tank O-ring clean and properly seated to prevent leaks after reassembly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":46797885636783,"sku":"VLX4001A","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/hayward-vl40t32-sand-filter-stand-pipe-underdrain-assembly-vlx4001a-pool-filter-parts-7183956.jpg?v=1777068753","url":"https:\/\/freshized.com\/products\/haywardvl40t32sandfilterstandpipeunderdrainassemblyvlx4001ahppvlx4001a","provider":"Freshized","version":"1.0","type":"link"}