ModPlunge - Cold Water Therapy-modtub
ModPlunge - Cold Water Therapy-modtub
ModPlunge - Cold Water Therapy-modtub
ModPlunge - Cold Water Therapy-modtub
ModPlunge - Cold Water Therapy-modtub
ModPlunge - Cold Water Therapy-modtub
ModPlunge - Cold Water Therapy-modtub
ModPlunge - Cold Water Therapy-modtub
Sale price$3,200.00

The ModPlunge is the ultimate cold plunge to bring cold water therapy to your home. It uses the same components as brands that cost twice as much, has the best insulation on the market, and can handle your active lifestyle with its tough composition. Are you ready to embrace the cold?

  • ALL orders placed now will ship out between February 26th and March 1st.
Please note custom color orders cannot be cancelled. Standard color orders can be cancelled before they ship for a 10% cancellation fee. Please see Refund and Cancellation Policy.

Technical Specs

Heater (Hot/Cold Only)

1/4 HP*



1,720 GPH

Filter Housing

Standard 10" x 2.5"


50 micron


110v, 7 amps

*Please see the below video

1 year standard warranty. See warranty details.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


As we reach the end of our current inventory without the Modtub sign, there will be a slight transition period where most tubs will ship with the Modtub sign under the top lid, but some may not.

We appreciate your understanding during this time, and rest assured that the quality and value of our cold plunge tubs remain exceptional. Thank you for your continued support!

– Modtub Team


What's Included

Each ModPlunge comes standard with the following:

  1. Cooler/Tub
  2. Chiller
  3. Pump
  4. InkBird for Temperature Control (Hot/Cold Only)
  5. Heater (Hot/Cold Only)
  6. Filter Housing
  7. Electrical Box
  8. Power cord
  9. 3x Filters
  10. Water Hose Filter
  11. All hoses and fittings prepped for easy assembly

Shipped weight without step is 220lbs, with step 240lbs


39 degrees is ice cold for plungers of all levels.

All the water in the ModPlunge will pass through the filter 5+ times/hour keeping it fresh.

The ModPlunge uses a standard 110v outlet, and it can pull up to 7 amps at a time. Therefore, we strongly recommend a dedicated breaker.

Your ModPlunge assembles in 10 minutes with no tools or plumbing required.

With its 2” thick walls, polyurethane injected interior, and hard lid, Modplunge’s
insulation sets it apart from the competition. This insulation makes for fast cooling, less
energy, and the ability to perform regardless of ambient temperature.

Dimensions of Our Modtub


Please note that you need to leave at least 12" of clearance behind the tub

Dry weight: 91lbs
Filled weight: 750lbs

Will I fit in the ModPlunge?

This is our friend Scott who is 6’7” 260lbs. He fits comfortably in the cooler, and he is an avid cold plunger. If he can fit, we believe most anyone can fit!


Yes, but if outside we recommend putting it under a covered area like a patio, umbrella, or under a deck to protect it from the elements. If temperatures get below freezing where you live, you will need to get the chiller bypass hose and bring the chiller inside during freezing temperatures.

The water can get as cold as 39 degrees. When set to 39 degrees the water will initially cool down to the set temperature of 39, and then it will enter standby mode until the water gets more than 2 degrees above the set temperature. Therefore, when set to 39, the water will stay between 39-41 degrees.

There are two different components to keeping the water clean: filtration and sanitation. For filtration, you need to keep your filter cartridges fresh so they do not get clogged and prevent flow. Depending on usage, you typically need to change your filter cartridge every 2-4 weeks.

For sanitation, we recommend purchasing our Sirona chemicals, and following our sanitation guidelines. If you follow these guidelines and change the filters appropriately, your water can stay clean for 3+ months.

Because of the superior insulation, the ModPlunge is very efficient. Keeping it at 43 degrees for a month in Texas summer heat, it only used 115 kwh which at the national average of $.23/kWh is $26.45. Therefore, the ModPlunge cost less than $1/day to operate.

We offer a 1-year warranty on the ModPlunge. To read the full details of our warranty, click here.

It should cool 3-5 degrees/hour on initial fill up.

No, we only want filtered water coming from the hose through the hose filter to fill up the ModPlunge. Ice is unfiltered and will cause your filters to clog quickly. Also, it can prevent flow through the pump and chiller.

No, we sell all of our units with the same configuration as a complete unit.

No, we fulfill orders in the order that they were placed.

The ModPlunge will be delivered via LTL freight on a pallet. Once it is picked up from our facility in Texas, the freight carrier will call, text, and/or email you to schedule the delivery appointment. They will drop the pallet off curbside at your house, and it is your responsibility to move it into place and dispose of the packaging.

Included with your ModPlunge is an instruction manual on how to put it together as well as a QR code to a video showing how to assemble. It is best to set up with at least two people, and it should take about 15 minutes to put together. The only tools required are a box cutter or scissors to cut away the packaging.