Zoeller M98 Flow-Mate Sump Pump - 1/2 HP Cast Iron, LED Power Plug, 115V Submersible

Protect your basement with dependable flow and smart design

The Zoeller M98 Flow-Mate Sump Pump delivers robust performance for challenging basement conditions. With a 1/2 HP capability and 115V submersible design, it moves water efficiently to help keep living spaces dry during heavy rain or rapid snowmelt. An integrated LED power plug lets you verify readiness at a glance, so you can feel confident the pump is primed when you need it most.

Durable, heat-dissipating construction

The motor is oil-filled and housed in cast iron, a combination that helps dissipate heat and resist wear. This design supports steady operation over time, contributing to longer service life in demanding environments.

• Oil-filled motor enhances heat management
• Cast iron housing adds rigidity and durability

Automatic operation for hands-off reliability

An automatic, snap-action float switch enables seamless, unattended operation. The pump can move up to 4320 gallons per hour, making it suitable for basements with higher water inflow or frequent drainage needs. The float-operated mechanism reduces manual intervention while maintaining steady performance.

• Automatic control minimizes monitoring requirements
• High flow rate supports rapid water removal

Maintenance-friendly flow and corrosion resistance

The non-clogging vortex impeller is made from corrosion-resistant plastic, designed to pass solids more easily and reduce downtime. Stainless steel hardware, along with a float guard and switch arm, resist rust in harsh conditions, helping maintain dependable operation over time.

• Vortex impeller reduces clogs and downtime
• Stainless steel components resist corrosion

Factory-tested, ready for installation

Each unit is factory tested and float-operated for predictable performance right out of the box. The combination of a submersible design and the included power features makes this pump a practical option for ongoing basement protection without complicated setup.

Key benefits at a glance:

• High-capacity flow with automatic, float-controlled operation
• Durable construction to withstand basement conditions
• Visible LED plug for quick power status checks