Best Cast Iron Sump Pumps of 2025

This 1/3 HP submersible sump pump is perfect for keeping your basement dry during heavy water flow. Its tough and durable design ensures long-lasting use, and the top suction design minimizes clogging. The vertical float switch has been tested for long-lasting use, up to 10 times more than competitors, and the pump is easy to install. With a 1-1/2” NPT discharge, this pump is compliant with building codes.

The Wayne Sump Pump CDU980E is designed for indoor use, making it ideal for keeping your basement dry during heavy rainfall or snowmelt. With its powerful 3/4 HP motor, it can pump an impressive 5,490 gallons per hour, ensuring your space stays free of water. Its robust construction features corrosion-resistant stainless steel and cast iron, providing durability for long-term use. The smart top suction design prevents clogging and air lock, while the easy installation process takes just about 15 minutes, allowing you to quickly safeguard your home from water damage.

The Superior Pump Sump Pump is a powerful 1/2 HP unit that can move up to 3,300 gallons of water per hour, making it ideal for quickly removing excess water from your basement or yard. With the ability to pump water up to 25 feet vertically, you can easily redirect water away from your home. Its durable cast iron construction ensures long-lasting performance, while the stainless steel impeller provides reliable operation. Additionally, the vertical float switch and 10-foot power cord offer convenient installation and operation, allowing you to set it up without hassle.

The Superior Pump 92551 1/2 HP Cast Iron Pedestal Pump is a sump pump that can move up to 3600-gallons per hour and handle liquids up to 180-degrees Fahrenheit. It is constructed with rugged stainless steel and cast iron, and features a non-corrosive, solid steel drive shaft, float ball, and impeller. The pump has a fully adjustable automatic switch, metal switch arm for strength and durability, 10-foot power cord, and is cULus Listed and CSA Certified. The Superior Pump is built to last with quality components and is 100% factory tested.

The WAYNE CDU800 1/2 HP Submersible Cast Iron and Steel Sump Pump is designed for indoor use only to keep your basement dry during heavy water flow. It has a tough and durable construction that includes a corrosion-resistant epoxy coated steel motor housing, stainless steel fasteners, and a cast-iron volute. The top suction design and 1-1/2” NPT discharge prevent clogging and ensure compliance with building codes. The integrated vertical float switch has been tested to 1 million cycles for long-lasting use. Proudly assembled in the USA and warrantied for 3 years.

The Little Giant Sump Pump is an automatic submersible pump designed to activate when water levels reach 7 to 10 inches. It conveniently shuts off when the water drops to between 1 and 4 inches, helping to manage water levels efficiently. Built with durable epoxy-coated cast iron housing, it ensures long-lasting performance. The pump features a continuous duty motor that is thermally protected, providing reliable operation with low running and starting amps. Perfect for sump systems and general water transfer, this pump must be submerged to function, making it ideal for various water removal tasks.

The Basement Watchdog Model BWT050 Sump Pump is a reliable and efficient solution for keeping your basement dry. With a pumping capacity of 4,200 gallons per hour at 0 feet and 2,770 gallons per hour at 10 feet, this pump can quickly remove excess water and prevent flooding. The energy-efficient PSC motor draws only 3.8 amps, helping you save money on electric bills. Its heavy-duty cast iron and cast aluminum construction ensures durability and longevity. The dual carbon ceramic and Buna-N shaft seals keep the motor dry, extending its lifespan. With a 3-year limited warranty, you can have peace of mind knowing that this sump pump is built to last.

The VEVOR 1.5 HP Submersible Sump Pump is a high-quality and efficient solution for keeping your basement dry during heavy water flow. With a 1.5 HP copper motor, it can move up to 6000 gallons of water per hour, lifting it vertically up to 33'. The corrosion-proof cast iron frame and rust-proof surface make it durable for long-lasting underwater use. The pump features a hands-free operation with a vertical float switch, allowing for energy-saving and labor-saving use. The 1-1/2" NPT water outlet diameter and 10 ft power cord make it convenient to use and portable.

The Superior 92151 Sump Pump by Superior Pump is a powerful and reliable pump designed to keep your basement or crawl space dry. With a 1 HP motor, this pump can move up to 5160 gallons of water per hour and can pump water up to 25 vertical feet. The rugged stainless steel and cast iron construction ensures durability and the continuous duty, thermally protected split capacitor motor provides long-lasting performance. The 2-inch discharge allows for high capacity pumping and can handle up to 1/2 inch solids. The pump comes with a vertical float switch, a 1-1/2 inch NPT discharge adapter, and a 10-foot power cord with a piggyback plug. With its quality components and factory testing, the Superior 92151 Sump Pump is built to last and can provide you with peace of mind during heavy rainstorms or flooding situations.

The AQUASTRONG Sump Pump is designed to efficiently handle water removal, capable of pumping out up to 3,830 gallons per hour while lifting water up to 25 feet. You’ll appreciate its automatic operation, which activates the pump when water levels rise beyond 8.4 inches and stops it when levels drop to 3.7 inches. Built with durable materials like stainless steel and cast iron, this pump is made to last and minimizes clogging. Safety is a priority too, as it features thermal overload protection to prevent damage in low water conditions, giving you peace of mind during operation.