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1/4 in. Evaporative Cooler Brass Float Valve

  • Maintains a constant water level and reliable valve shut-off
  • Designed for residential and commercial evaporative coolers
  • Non-corrosive bronze design is built to last
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Product Details

About This Product

The Evaporative Cooler Brass Float Valve performs a vital function in your evaporative cooler. Too little water creates dry spots in the cooler pads. Too much water causes an overflow condition. The Brass Float Valve prevents these unwanted conditions by ensuring a constant water level and dependable valve shut-off.


  • For use in most models of residential and commercial evaporative coolers
  • Anti-corrosive brass body, arm, and stem for long life
  • Versatile 1/4 in. compression fitting easily connects to either a copper or poly supply line
  • Adjustable stem helps prevent excessive water usage
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Product Information

Internet # 100560907

Model # 4154

Store SKU # 465961


Dimensions: H 1.5 in, W 2.5 in, D 11.25 in


Product Depth (in.)

11.25 in

Product Height (in.)

1.5 in

Product Width (in.)

2.5 in




Pack Size


Part/Accessory Type


Product Weight (lb.)

0.26 lb



Warranty / Certifications

Manufacturer Warranty

90 Day Warranty

Questions & Answers

Q:Does this fit Hessaire MC26A Evaporative Cooler?
by|Jun 2, 2023
2 Answers
Answer This Question

A:  No. Looks like the MC26A has a customized float. See the following YouTube video titled "How to Replace the Float Valve in Your Hessaire Mobile Cooler" -- https://youtu.be/llnrEQEqqoY?t=52

by|Jun 3, 2023

    A:  No, this does not fit the Hessaire MC26A.

    by|Jun 5, 2023
      Q:Is this safe to use for drinking water?
      by|Oct 16, 2022
      1 Answer
      Answer This Question

      A:  No. This is for non-potable water installs only.

      by|Oct 17, 2022
        Q:Do you install?
        by|Feb 5, 2022
        2 Answers
        Answer This Question

        A:  This is an easy DIY install. It took me maybe five minutes.  A couple of box end wrenches will do the job or adjustable crescent wrenches 

        by|Feb 6, 2022

          A:  yes I installed it and it was quite easy to do.

          by|Feb 7, 2022
            Q:What is the GPM rating on this valve?
            by|Jan 17, 2022
            3 Answers
            Answer This Question

            A:  The rating is 2.1 GPM at 30 psi water pressure.

            by|Jan 20, 2022

              A:  It is just an open/closed valve - the GPM is more of a function of the water pressure at the source.

              by|Jan 23, 2022

                A:  1.31 gpm at 35 psi...can very if you have a pressure regulator or not. Some older homes don't.

                by|Jan 19, 2022
                  Showing 1-4 of 8

                  Customer Reviews

                  4.6 out of 5

                  • 4.6 out of 252 reviews
                  • 95% recommend this product
                  Filter by:
                  Showing 1-10 of 252 reviews
                  Fits my 1965 Tradewinds Swamp cooler! It came fast to...
                  Fits my 1965 Tradewinds Swamp cooler! It came fast to my house
                  • Verified Purchase
                  Perfect For My Needs
                  I needed a demand watering system for my pet pig who drinks a lot of water. I installed this device on his watering bowl so that it will automatically re-fill he bowl when he takes a drink.
                  • DIY
                  • Verified Purchase
                  • Recommended
                  5 found this review helpful
                  You can't find one in Houston for your fountain
                  I built a fountain three years ago that depends on a float valve to keep the reservoir from overfilling. (Because Houston is so humid, no one sells any parts for an evaporative cooler -- they don't work here,) There was no choice but to find it online. My previous one was made of nylon and broke, so i made sure this one was made of brass. My Home Depot is about six miles away and I arranged to pick up the valve there. I was very impressed with how fast and easy the whole transaction had been, from ordering to pickup. Installation of the valve only took about ten minutes. (BTW, the water line is a refrigerator ice maker line hooked up to an outside faucet.)
                  • Verified Purchase
                  • Recommended
                  3 found this review helpful
                  Easy installation and great quality. Works much better than the original plastic one which came with the cooler.
                  • Verified Purchase
                  • Verified Purchase
                  Worked fine to fix a Bonaire 5900. Hard to find in the store. Had to get help because it was no place near expected.
                  • Verified Purchase
                  • Verified Purchase
                  • Verified Purchase
                  The float was easy to install and it works great. I would suggest watching a video to ensure you bend the float the correct way!
                  • Verified Purchase
                  • Verified Purchase
                  Showing 1-10 of 252 reviews