Zoeller® 137-0001, Effluent Pump, 10' Cord Length, Series: M137 Flow-Mate, 93 gpm Maximum, Automatic/Non Automatic: Automatic, 1-1/2 in NPT Outlet, 26 ft Maximum Head, 1/2 hp, 115 V, 10.7 A, 60 Hz Frequency, 1 ph, 1725 rpm Motor, 3-Wire Neoprene Cord, Non-Clogging Vortex Impeller, 130 deg F, Sleeve Upper/Sleeve Lower Bearing, Cast Iron, Domestic

The Zoeller Model M137 Sump Pump is a fully automatic, professional-grade solution engineered for the removal of unwanted groundwater in basement sump applications. Featuring a durable ½ HP motor and automatic operation, the M137 is trusted for its high flow performance and ability to withstand demanding sump conditions. The M137 is built for strength and durability. Its switch case, motor housing, pump housing, and base are constructed entirely of heavy-duty cast iron, while the cast iron vortex impeller allows solids to pass freely through the pump, reducing the risk of clogging and ensuring smooth, uninterrupted operation. Known as the “Flow-Mate”, the 137-0001 pump is equipped with a solid white polypropylene float that will never absorb water, ensuring permanent buoyancy and consistent activation of the pump. To further enhance reliability, all external components—including the identification tag, float guard, handle, switch arm, and hardware—are manufactured from non-corrodible stainless steel, offering superior resistance to wear and corrosion. Every Zoeller Model M137 is fully submerged and tested to its published performance curve prior to shipment, ensuring peace of mind and optimal performance right out of the box.