{"product_id":"stenner45m538singleheadfeeder45mjl5a3staastn45mjl5a3staa","title":"Stenner 45M5 3\/8\" Single Head Feeder  | 45MJL5A3STAA","description":"\u003cdiv\u003e\n  \u003ch2\u003eStenner 45MJL5A3STAA Classic Series Single Head Adjustable Peristaltic Metering Pump – 2.5–50 GPD, 25 PSI Max, 120V (3\/8\" White Santoprene® Tube)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Stenner 45MJL5A3STAA is a Classic Series \u003cstrong\u003esingle head adjustable-output\u003c\/strong\u003e peristaltic metering pump built for reliable chemical feed in pools, water treatment, and industrial dosing applications.\n    Output is adjusted with the built-in manual feed-rate control, giving you flexible dosing without changing pump heads or electronics.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Classic Series single head adjustable-output peristaltic pump\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdjustable dosing:\u003c\/strong\u003e Approx. \u003cstrong\u003e20:1 turndown\u003c\/strong\u003e with \u003cstrong\u003e2.5% increment\u003c\/strong\u003e adjustment (manual feed-rate control)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSelf-priming:\u003c\/strong\u003e Designed to self-prime and resist vapor lock; suitable for many off-gassing solutions\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3-point roller design:\u003c\/strong\u003e Helps with anti-siphon performance and steady output\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eService-friendly:\u003c\/strong\u003e Motor, feed-rate control, and pump head are designed to separate for easier service\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuickPro® style head:\u003c\/strong\u003e Simplifies routine pump-tube service (tool-free tube change on compatible heads)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003ePerformance \u0026amp; Electrical\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModel\/Output class:\u003c\/strong\u003e 45M5\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOutput range (up to 25 PSI):\u003c\/strong\u003e \u003cstrong\u003e2.5–50 gallons per day\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e \u003cstrong\u003e25 PSI\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVoltage\/Frequency:\u003c\/strong\u003e \u003cstrong\u003e120V, 60 Hz\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTube size \u0026amp; color:\u003c\/strong\u003e \u003cstrong\u003e3\/8\" white\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTube material:\u003c\/strong\u003e \u003cstrong\u003eSantoprene®\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTypical Applications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePool and spa chemical feed (sanitizer, pH control)\u003c\/li\u003e\n    \u003cli\u003eWater conditioning and filtration pretreatment (oxidation \/ disinfection support)\u003c\/li\u003e\n    \u003cli\u003eIndustrial process dosing and cooling tower treatment\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eStenner Classic Series adjustable-output pump (single head), factory-configured for 3\/8\" white Santoprene® tubing\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=stenner%2045MJL5A3STAA\"\u003eSearch: Stenner 45MJL5A3STAA\u003c\/a\u003e\n      \u003cspan\u003e (check if this exact pump is listed in our catalog)\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=stenner%20tube%205%203%2F8%20santoprene\"\u003eSearch: Stenner Pump Tube #5 (3\/8\" Santoprene)\u003c\/a\u003e\n      \u003cspan\u003e (primary wear item; replacing the tube restores output and reliable priming)\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=stenner%20quickpro%20service%20kit\"\u003eSearch: Stenner QuickPro Service Kit\u003c\/a\u003e\n      \u003cspan\u003e (pump head service parts\/roller kits, depending on model and inventory)\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=stenner%20injection%20check%20valve\"\u003eSearch: Stenner Injection Check Valve\u003c\/a\u003e\n      \u003cspan\u003e (a clogged injection point can stop flow even when the pump runs)\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=stenner%20suction%20strainer%20foot%20valve\"\u003eSearch: Stenner Suction Strainer \/ Foot Valve\u003c\/a\u003e\n      \u003cspan\u003e (helps keep debris out of the suction line and pump head)\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=stenner%20rain%20roof\"\u003eSearch: Stenner Rain Roof\u003c\/a\u003e\n      \u003cspan\u003e (recommended protection for outdoor installations)\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/vendors?q=stenner\"\u003eShop: Stenner\u003c\/a\u003e\n      \u003cspan\u003e (browse more Stenner pumps, parts, and accessories)\u003c\/span\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCalibrate feed rate after installation—actual output varies with chemical type, suction lift, and system pressure.\u003c\/li\u003e\n    \u003cli\u003eReplace the pump tube on a schedule; a worn tube is the most common cause of low output, inconsistent feed, or loss of prime.\u003c\/li\u003e\n    \u003cli\u003eIf the motor runs but flow is low, inspect the injection check valve and injection fitting for scale or blockage.\u003c\/li\u003e\n    \u003cli\u003eKeep suction connections airtight—small air leaks on the suction side can cause intermittent dosing.\u003c\/li\u003e\n    \u003cli\u003eMount the pump in a location that minimizes UV\/weather exposure; use a rain roof or enclosure if installed outdoors.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Stenner","offers":[{"title":"Default Title","offer_id":46797837205679,"sku":"45MJL5A3STAA","price":529.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/freshized.com\/products\/stenner45m538singleheadfeeder45mjl5a3staastn45mjl5a3staa","provider":"Freshized","version":"1.0","type":"link"}