I would purchase it again

Good pumping rate, good value, good quality.

Fast Delivery

This pump was the exact replacement for the one that failed after 10 years. Very pleased with the product and the fast delivery.

Best Value Sump Pump For Serious Water Discharge

Excellent quaility sump pump. It is currently cycling evry 90 seconds due to the highest water table I've seen in 15 years. Greatest price by far.

Top Quality. Long lasting. Extremely dependable

Have been using M137s for my bad basement water problem for nearly 20 years. I replace them after about 5 years and literally hundreds of thousands of cycles not because they fail but because I start getting concerned about their age. The only problems I have had with them is the float switches eventuality wear out after a few years of hard use. These pumps are incredibly well made!

I would buy this again

This is the only pump that works in my basement, the best pump I ever bought. Thank you.

Best pump ever!

Best pump ever!

Sent to us in a timely manner and everything fit/worked as expected. Continues to keep our area p...

Sent to us in a timely manner and everything fit/worked as expected. Continues to keep our area pumped out automatically to prevent any water problems.

Short Term Life

They seem to only last a couple of months. They freeze up and stop working. Have replaced several of them.

Good Product With Bad Switches

This pump works well when it's new. However, after two years the float switch becomes problematic and stops all together. I've had to have three of these pumps installed in less than six years due to faulty switches. Including the installation, the price equates to about $1,000.00 per pump. I believe the manufacturer should build a better switch mechanism for a product which is by and large excellent.

Great pump, very heavy construction.

Used to pump water from a creek, sometimes runs all day. Cast iron impeller is a big pluss.

After 20+ Year I Needed Another

I needed an effluent pump for my basement plumbing and a friend said to get a Zoeller. That was over 20 years ago. The first one finally gave it up and I didn't hesitate for one second to buy another. They are worry-free work horses and don't think I would ever consider buying a different pump. I highly recommend Zoeller.

Cast Iron Workhorse

I depend on this model to keep my basement dry. Very dependable. I have two of them in different sump crocks.

Zoeller is suppose to be at the top when it comes to sump pumps. Ours has done the job from day one.

Zoeller is suppose to be at the top when it comes to sump pumps. Ours has done the job from day one.

I bought this pump to replace a Zoeller Mighty Mate 50-series that I bought 14 years ago. That pu...

I bought this pump to replace a Zoeller Mighty Mate 50-series that I bought 14 years ago. That pump was undersized for my application, as it ran continuously for days (sometimes up to a week straight in the spring) without interruption. When I called Zoeller to get a sizing recommendation for a new pump, they told me the Mighty-Mate series is not rated for continuous operation, and I should replace it as soon as I could. Then I told the technician that it was also 14 years old and he flipped. I'm recalling this story to give you an example of just how long Zoeller pumps last, even in out-of-spec applications.

Gray water pump

My only problem with this pump is it is so quite that I can't tell if its running. So far it is great, I hope it continues for years to come.

Worth every penny. Since we live in an area were we seem to have the one hundered year flood at l...

Worth every penny. Since we live in an area were we seem to have the one hundered year flood at least three times per year, I decided to buy a oversides pump.