Grundfos SL1 Series Submersible Wastewater Pumps with S-Tube Impeller

The Grundfos SL1 Series is a high-performance range of submersible wastewater pumps engineered for efficient handling of large volumes of raw sewage and wastewater in municipal, industrial, and large commercial applications. With motor sizes from 1.1 to 11 kW, the SL1 features the industry-leading Grundfos S-tube® impeller, delivering superior clog resistance, energy efficiency, and hydraulic reliability.

Capable of passing solids up to 125 mm (5"), the SL1 pump is ideal for heavy-duty use in systems where high flow and minimal maintenance are critical. Designed for continuous operation in submerged installations, the SL1 offers a robust, durable build with features that protect against dry running, overheating, and excessive wear.

Key features:

• S-tube® impeller for reliable, clog-free operation
• Free passage of solids up to 125 mm
• Compact, easy-to-install submersible design
• Built for low maintenance and long service life

Ideal for wastewater pumping stations, sewage networks, industrial effluent, and stormwater handling. All SL1 pumps are backed by free Australia-wide shipping and expert support from Land & Water Technology.