{"product_id":"whisperflo-vst-variable-speed-pump","title":"WhisperFlo® VST Variable Speed Pump","description":"\u003ch2 data-section-id=\"8j6h1w\" data-start=\"53\" data-end=\"78\"\u003eKey Benefits + Fitment\u003c\/h2\u003e\n\u003cul data-start=\"80\" data-end=\"784\"\u003e\n\u003cli data-section-id=\"11yfe58\" data-start=\"80\" data-end=\"96\"\u003eBrand: Pentair\u003c\/li\u003e\n\u003cli data-section-id=\"qb8hu2\" data-start=\"97\" data-end=\"147\"\u003eProduct: WhisperFlo VST Variable Speed Pool Pump\u003c\/li\u003e\n\u003cli data-section-id=\"r9anng\" data-start=\"148\" data-end=\"175\"\u003eSKU \/ MPN: 011533 \/ 11533\u003c\/li\u003e\n\u003cli data-section-id=\"u88piy\" data-start=\"176\" data-end=\"204\"\u003eTotal Horsepower: 2.60 THP\u003c\/li\u003e\n\u003cli data-section-id=\"13thon7\" data-start=\"205\" data-end=\"222\"\u003eWEF Rating: 8.4\u003c\/li\u003e\n\u003cli data-section-id=\"z2ssis\" data-start=\"223\" data-end=\"246\"\u003eVoltage: 115\/208–230V\u003c\/li\u003e\n\u003cli data-section-id=\"1dl2vw9\" data-start=\"247\" data-end=\"350\"\u003eDesigned as a variable speed replacement pump for many existing Pentair WhisperFlo pump installations\u003c\/li\u003e\n\u003cli data-section-id=\"6kdf5b\" data-start=\"351\" data-end=\"445\"\u003eBuilt with a totally enclosed fan-cooled motor for durability in pool equipment environments\u003c\/li\u003e\n\u003cli data-section-id=\"frtnqo\" data-start=\"446\" data-end=\"566\"\u003eUser-friendly programming helps pool owners select the right operating speed for circulation, cleaning, and efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"5xhivz\" data-start=\"567\" data-end=\"680\"\u003eBest suited for in-ground residential pool systems where proper sizing and plumbing compatibility are confirmed\u003c\/li\u003e\n\u003cli data-section-id=\"d0g8hx\" data-start=\"681\" data-end=\"784\"\u003eProfessional installation is recommended for electrical, plumbing, and equipment-pad replacement work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"kdtf3b\" data-start=\"786\" data-end=\"810\"\u003eQuick Product Summary\u003c\/h2\u003e\n\u003cp data-start=\"812\" data-end=\"1352\"\u003eThe Pentair WhisperFlo VST Variable Speed Pump 011533 is a high-performance variable speed pool pump designed to deliver dependable circulation, strong hydraulic performance, and improved energy efficiency compared to traditional single-speed pumps. Built as a strong replacement option for many existing WhisperFlo installations, this pump gives pool owners better control over pump speed, daily run time, and system performance while maintaining the durability Pentair WhisperFlo pumps are known for. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"4megn2\" data-start=\"1354\" data-end=\"1365\"\u003eBest For\u003c\/h2\u003e\n\u003cul data-start=\"1367\" data-end=\"1765\"\u003e\n\u003cli data-section-id=\"wj34es\" data-start=\"1367\" data-end=\"1411\"\u003eReplacing an older Pentair WhisperFlo pump\u003c\/li\u003e\n\u003cli data-section-id=\"zjvcb5\" data-start=\"1412\" data-end=\"1481\"\u003eUpgrading from a single-speed pool pump to variable speed operation\u003c\/li\u003e\n\u003cli data-section-id=\"yyh10g\" data-start=\"1482\" data-end=\"1530\"\u003eIn-ground residential pool circulation systems\u003c\/li\u003e\n\u003cli data-section-id=\"1rntr27\" data-start=\"1531\" data-end=\"1602\"\u003ePool owners who want better speed control and energy-saving operation\u003c\/li\u003e\n\u003cli data-section-id=\"8xoj0z\" data-start=\"1603\" data-end=\"1674\"\u003eSystems that need more performance than a smaller variable speed pump\u003c\/li\u003e\n\u003cli data-section-id=\"1ocpi00\" data-start=\"1675\" data-end=\"1765\"\u003eEquipment pads where pump sizing, voltage, and plumbing compatibility have been verified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1u9nex9\" data-start=\"1767\" data-end=\"1786\"\u003eWhy This Matters\u003c\/h2\u003e\n\u003cul data-start=\"1788\" data-end=\"2608\"\u003e\n\u003cli data-section-id=\"nrlmf8\" data-start=\"1788\" data-end=\"1887\"\u003eHelps reduce energy use by allowing the pump to run at lower speeds when full power is not needed\u003c\/li\u003e\n\u003cli data-section-id=\"1i11ywi\" data-start=\"1888\" data-end=\"1976\"\u003eRestores reliable pool circulation when an older pump is loud, inefficient, or failing\u003c\/li\u003e\n\u003cli data-section-id=\"whqlih\" data-start=\"1977\" data-end=\"2081\"\u003eSupports better filtration by allowing longer, lower-speed circulation cycles when programmed properly\u003c\/li\u003e\n\u003cli data-section-id=\"ttjoq4\" data-start=\"2082\" data-end=\"2180\"\u003eReduces strain on pool equipment compared with running a single-speed pump at full speed all day\u003c\/li\u003e\n\u003cli data-section-id=\"1b8c4fb\" data-start=\"2181\" data-end=\"2282\"\u003eHelps maintain pool water clarity by supporting consistent water movement through the filter system\u003c\/li\u003e\n\u003cli data-section-id=\"9may41\" data-start=\"2283\" data-end=\"2393\"\u003eProvides stronger performance than the Pentair SuperFlo VST for applications that require more pump capacity\u003c\/li\u003e\n\u003cli data-section-id=\"5qe1wn\" data-start=\"2394\" data-end=\"2493\"\u003eHelps avoid unnecessary service problems when replacing a worn pump with a properly matched model\u003c\/li\u003e\n\u003cli data-section-id=\"bs2oaz\" data-start=\"2494\" data-end=\"2608\"\u003eSupports pool cleaning, heating, sanitizing, and circulation performance when installed and programmed correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"16e1849\" data-start=\"2610\" data-end=\"2655\"\u003eCommon Signs You Need This \/ Use This When\u003c\/h2\u003e\n\u003cul data-start=\"2657\" data-end=\"3244\"\u003e\n\u003cli data-section-id=\"1v3g9cp\" data-start=\"2657\" data-end=\"2712\"\u003eYour current pool pump is loud, aging, or inefficient\u003c\/li\u003e\n\u003cli data-section-id=\"1x4mfv3\" data-start=\"2713\" data-end=\"2800\"\u003eYour single-speed pump runs at full speed all day and uses more energy than necessary\u003c\/li\u003e\n\u003cli data-section-id=\"pfcg2u\" data-start=\"2801\" data-end=\"2888\"\u003eYour existing WhisperFlo pump needs replacement and you want a variable speed upgrade\u003c\/li\u003e\n\u003cli data-section-id=\"1kjwp2\" data-start=\"2889\" data-end=\"2960\"\u003eYour pool circulation is inconsistent due to an aging or failing pump\u003c\/li\u003e\n\u003cli data-section-id=\"10zj5ya\" data-start=\"2961\" data-end=\"3064\"\u003eYour equipment system needs better speed control for filtration, cleaning, heating, or water features\u003c\/li\u003e\n\u003cli data-section-id=\"15qh7oj\" data-start=\"3065\" data-end=\"3138\"\u003eYou want a durable Pentair variable speed pump with onboard programming\u003c\/li\u003e\n\u003cli data-section-id=\"jfnffr\" data-start=\"3139\" data-end=\"3244\"\u003eYour pool professional has confirmed that this pump matches your plumbing, voltage, and hydraulic needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"3ipjz4\" data-start=\"3246\" data-end=\"3271\"\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3273\" data-end=\"3879\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3273\" data-end=\"3300\"\u003e\n\u003ctr data-start=\"3273\" data-end=\"3300\"\u003e\n\u003cth data-start=\"3273\" data-end=\"3289\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"3289\" data-end=\"3300\" data-col-size=\"md\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3311\" data-end=\"3879\"\u003e\n\u003ctr data-start=\"3311\" data-end=\"3330\"\u003e\n\u003ctd data-start=\"3311\" data-end=\"3319\" data-col-size=\"sm\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-start=\"3319\" data-end=\"3330\" data-col-size=\"md\"\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3331\" data-end=\"3364\"\u003e\n\u003ctd data-start=\"3331\" data-end=\"3346\" data-col-size=\"sm\"\u003eProduct Line\u003c\/td\u003e\n\u003ctd data-start=\"3346\" data-end=\"3364\" data-col-size=\"md\"\u003eWhisperFlo VST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3365\" data-end=\"3408\"\u003e\n\u003ctd data-start=\"3365\" data-end=\"3380\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-start=\"3380\" data-end=\"3408\" data-col-size=\"md\"\u003eVariable speed pool pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3409\" data-end=\"3424\"\u003e\n\u003ctd data-start=\"3409\" data-end=\"3415\" data-col-size=\"sm\"\u003eSKU\u003c\/td\u003e\n\u003ctd data-start=\"3415\" data-end=\"3424\" data-col-size=\"md\"\u003e11533\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3425\" data-end=\"3441\"\u003e\n\u003ctd data-start=\"3425\" data-end=\"3431\" data-col-size=\"sm\"\u003eMPN\u003c\/td\u003e\n\u003ctd data-start=\"3431\" data-end=\"3441\" data-col-size=\"md\"\u003e011533\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3442\" data-end=\"3473\"\u003e\n\u003ctd data-start=\"3442\" data-end=\"3461\" data-col-size=\"sm\"\u003eTotal Horsepower\u003c\/td\u003e\n\u003ctd data-start=\"3461\" data-end=\"3473\" data-col-size=\"md\"\u003e2.60 THP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3474\" data-end=\"3494\"\u003e\n\u003ctd data-start=\"3474\" data-end=\"3487\" data-col-size=\"sm\"\u003eWEF Rating\u003c\/td\u003e\n\u003ctd data-start=\"3487\" data-end=\"3494\" data-col-size=\"md\"\u003e8.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3495\" data-end=\"3521\"\u003e\n\u003ctd data-start=\"3495\" data-end=\"3505\" data-col-size=\"sm\"\u003eVoltage\u003c\/td\u003e\n\u003ctd data-start=\"3505\" data-end=\"3521\" data-col-size=\"md\"\u003e115\/208–230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3522\" data-end=\"3572\"\u003e\n\u003ctd data-start=\"3522\" data-end=\"3535\" data-col-size=\"sm\"\u003eMotor Type\u003c\/td\u003e\n\u003ctd data-start=\"3535\" data-end=\"3572\" data-col-size=\"md\"\u003eTotally enclosed fan-cooled motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3573\" data-end=\"3607\"\u003e\n\u003ctd data-start=\"3573\" data-end=\"3587\" data-col-size=\"sm\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-start=\"3587\" data-end=\"3607\" data-col-size=\"md\"\u003ePool circulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3608\" data-end=\"3671\"\u003e\n\u003ctd data-start=\"3608\" data-end=\"3620\" data-col-size=\"sm\"\u003ePool Type\u003c\/td\u003e\n\u003ctd data-start=\"3620\" data-end=\"3671\" data-col-size=\"md\"\u003eIn-ground residential pools when properly sized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3672\" data-end=\"3763\"\u003e\n\u003ctd data-start=\"3672\" data-end=\"3690\" data-col-size=\"sm\"\u003eReplacement Use\u003c\/td\u003e\n\u003ctd data-start=\"3690\" data-end=\"3763\" data-col-size=\"md\"\u003eDrop-in replacement option for many existing Pentair WhisperFlo pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3764\" data-end=\"3789\"\u003e\n\u003ctd data-start=\"3764\" data-end=\"3775\" data-col-size=\"sm\"\u003eCategory\u003c\/td\u003e\n\u003ctd data-start=\"3775\" data-end=\"3789\" data-col-size=\"md\"\u003ePool pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3790\" data-end=\"3810\"\u003e\n\u003ctd data-start=\"3790\" data-end=\"3799\" data-col-size=\"sm\"\u003eVendor\u003c\/td\u003e\n\u003ctd data-start=\"3799\" data-end=\"3810\" data-col-size=\"md\"\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3811\" data-end=\"3879\"\u003e\n\u003ctd data-start=\"3811\" data-end=\"3838\" data-col-size=\"sm\"\u003eRecommended Installation\u003c\/td\u003e\n\u003ctd data-start=\"3838\" data-end=\"3879\" data-col-size=\"md\"\u003eProfessional installation recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"1hf0woe\" data-start=\"3881\" data-end=\"3913\"\u003eCompatibility \/ Fitment Notes\u003c\/h2\u003e\n\u003cp data-start=\"3915\" data-end=\"4279\"\u003eThe Pentair WhisperFlo VST Variable Speed Pump is described by Pentair as a superior drop-in replacement for existing Pentair WhisperFlo pumps, making it a strong option when upgrading an older WhisperFlo system to variable speed performance. It is also positioned as a more powerful option than the Pentair SuperFlo VST pump. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4281\" data-end=\"4637\"\u003eBefore ordering, confirm your existing pump model, voltage, plumbing size, equipment-pad layout, automation needs, and hydraulic requirements. Do not assume this pump is correct for every pool system. Pump sizing should be based on pool volume, plumbing design, filter capacity, cleaner type, heater requirements, water features, and local electrical code.\u003c\/p\u003e\n\u003ch2 data-section-id=\"3ww6d2\" data-start=\"4639\" data-end=\"4666\"\u003eInstallation \/ Use Notes\u003c\/h2\u003e\n\u003cp data-start=\"4668\" data-end=\"5026\"\u003eProfessional installation is strongly recommended for the Pentair WhisperFlo VST because pool pump replacement involves electrical wiring, plumbing connections, priming, bonding, and system programming. Always verify that the pump voltage, breaker, wire size, plumbing layout, and system requirements match the installation before replacing an existing pump.\u003c\/p\u003e\n\u003cp data-start=\"5028\" data-end=\"5294\"\u003eAfter installation, the pump should be programmed for the pool’s actual circulation needs. Variable speed pumps perform best when speeds and schedules are set for filtration, cleaning, heating, and sanitizer operation instead of simply running at full speed all day.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1bnh3vx\" data-start=\"5296\" data-end=\"5318\"\u003eBuy with Confidence\u003c\/h2\u003e\n\u003cp data-start=\"5320\" data-end=\"5615\"\u003eBuy the Pentair WhisperFlo VST Variable Speed Pump from Benchmark Pool Supply with confidence. Our team understands pool equipment from a service-tech perspective, which means we focus on helping customers choose the correct pump, match the right replacement, and avoid costly wrong-part orders.\u003c\/p\u003e\n\u003cp data-start=\"5617\" data-end=\"5884\"\u003eFor pumps, details matter. Voltage, plumbing layout, horsepower, equipment compatibility, and installation requirements should all be confirmed before purchase. Benchmark Pool Supply helps customers make a more informed decision before replacing major pool equipment.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1r8frcv\" data-start=\"5886\" data-end=\"5915\"\u003e\u003cbr\u003e\u003c\/h2\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":43539592773706,"sku":"11533","price":2059.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6580\/7178\/files\/2022-Pentair-WhisperFlo-LeftAngle.png.thumb.1280.1280_1.png?v=1780657065","url":"https:\/\/benchmarkpoolsupply.com\/products\/whisperflo-vst-variable-speed-pump","provider":"Benchmark Pool Supply","version":"1.0","type":"link"}