{"product_id":"zoeller-zoeller-m53-sump-pump-1-3-hp-cast-iron","title":"Zoeller zoeller-m53 Sump Pump 1\/3 Hp Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ZOELLER zoeller-m53 is a 1\/3 HP submersible sump pump built for residential and light commercial water removal applications. The motor and pump housing are cast iron, and the base is engineered thermoplastic. A float-operated, 2-pole mechanical switch controls automatic operation. The unit ships with an oil-filled, hermetically sealed motor with automatic reset thermal overload protection, a carbon and ceramic shaft seal, and sleeve bearings that run in an oil bath. The entire pump is pressure-tested after assembly and carries a corrosion-resistant, powder-coated epoxy finish with no sheet metal parts that can rust.\u003c\/p\u003e\n\u003cp\u003eThe zoeller-m53 is suited for sump pit applications in residential basements and crawl spaces as well as light commercial dewatering and effluent transfer where solids passage is a factor. The float switch activates the pump at a pit depth of 7.25 inches and shuts it off at 3 inches, making it compatible with standard variable-level, long-cycle control systems. The 1.5-inch NPT discharge connects to standard schedule 40 or schedule 80 PVC discharge piping commonly used in these installations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCast iron motor housing, switch case, and pump housing for durability and heat dissipation\u003c\/li\u003e\n  \u003cli\u003eOil-filled, hermetically sealed motor with automatic reset thermal overload protection\u003c\/li\u003e\n  \u003cli\u003eFloat-operated 2-pole mechanical switch with 7.25-inch on point and 3-inch off point\u003c\/li\u003e\n  \u003cli\u003ePasses solids up to 0.5 inches spherical — no screens to clog\u003c\/li\u003e\n  \u003cli\u003eStainless steel screws, switch arm, guard, and handle resist corrosion\u003c\/li\u003e\n  \u003cli\u003eWatertight and dust-tight construction with neoprene square ring seal between motor and pump housing\u003c\/li\u003e\n  \u003cli\u003eMaximum liquid temperature: 130 degrees F for effluent or dewatering service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style submersible sump pump replacement suitable for standard residential and light commercial sump pit installations using a 1.5-inch NPT discharge connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber in accordance with local plumbing codes and the IPC. Disconnect all power to the circuit before lowering the pump into the sump pit or servicing any components. The 1.5-inch NPT discharge outlet should be connected using appropriate fittings and a check valve to prevent backflow when the pump cycles off. Verify pit diameter and depth accommodate the pump dimensions before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorsepower\u003c\/strong\u003e: 1\/3 HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDischarge Size\u003c\/strong\u003e: 1.5 inches NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch On Point\u003c\/strong\u003e: 7.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Off Point\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Liquid Temperature\u003c\/strong\u003e: 130 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolids Passage\u003c\/strong\u003e: 0.5 inches spherical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMajor Width\u003c\/strong\u003e: 10.09 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMajor Height\u003c\/strong\u003e: 10.06 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Housing Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBase Material\u003c\/strong\u003e: Engineered Thermoplastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpeller Material\u003c\/strong\u003e: Glass-Filled Plastic with Metal Insert\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft Seal\u003c\/strong\u003e: Carbon and Ceramic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Type\u003c\/strong\u003e: Float-Operated 2-Pole Mechanical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type\u003c\/strong\u003e: Oil-Filled Hermetically Sealed with Automatic Reset Thermal Overload\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Powder-Coated Epoxy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ZOELLER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: zoeller-m53\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zoeller","offers":[{"title":"Default Title","offer_id":51138404385074,"sku":"ZOELLER-M53","price":268.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305532749.png?v=1778255471","url":"https:\/\/voomisupply.com\/products\/zoeller-zoeller-m53-sump-pump-1-3-hp-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}