Cold plunge filter

BoxPlunge, crafts state-of-the-art cleaning systems tailored for your DIY chest freezer cold plunge. This cold plunge filtration solution is designed to keep your water pristine for extended periods. As with all spa filtration systems, we recommend showering before diving into the cold plunge to ensure maximum efficiency and cleanliness

This cold plunge filter system uses an USA-Made magnetic water pump (Danner) that is extremely reliable. The pump is 1,200gph and it works in-junction with a 2.5” x 10” standard pleated filter canister and thanks to the advanced pre-filtration you only have to clean the filter cartridge once a month or even less frequently.

How does the chest freezer cold plunge filter system work?

Our cold plunge filtration system is submersible which means you can place it inside your cold plunge tub, leave it and it’ll do the cleaning for you. This cold plunge filter is by far the easiest to install and it is much better than any aquarium filter, including the MarineLand.

The pre-filter, identifiable by its rectangular mesh situated at the upper inlet of the water pump, serves a crucial role in maintaining your system’s efficiency. By intercepting larger debris, including hair and skin flakes, it proactively ensures:

The pump’s impeller operates at optimal efficiency, as it prevents hair and other particles from reaching and tangling around it.
The pleated filter within the primary filter canister remains cleaner for longer durations, safeguarding against potential drops in water flow due to a saturated filter cartridge.

Water gets pulled through this “pre filter” into the actual filter canister through which it gets further “polished” resulting in crystal clear water. Our chosen filter cartridges are at 30 micron, which means debris of 30 micron or more will not go through the filter canister and get back into your cold plunge water.

When you combine this filtration system with a standard sanitation SPA system such as an ozone generator or a UV light (read this article to know the differences) then, we can guarantee you effortlessly clean water for months on end.

What sort of maintenance is it expected?

You should slip-out the pre-filter out once a week and give it a quick rinse. Alternatively, you may use a pool or aquarium net to remove the debris from the top (Watch this video to learn more). The sleek and flat surface design allows for quick and efficient washing. The actual filter cartridge should be change once every 1 month depending on usage. Thanks to the transparent filter canister you can see through and check for impurities. Note that if you fail to change the filter, water flow will be affected.

Is this cold plunge filtration system compatible with a chiller-based cold plunge?

The answer is, yes! And the advantage is that this filtration system requires absolutely no plumbing at all because it is 100% submersible which means it sits right inside your cold plunge tub. Just make sure to choose the right format.

How does this cold plunge filtration system compares to the MarineLand filter?

BoxPlunge’s cold plunge filter is superior to the MarineLand’s because it is more than twice as powerful. Additionally, the system uses standard filtration cartidges as opposed to MarineLand’s unique cartridge size. This means cheaper filter cartridges, much more reliable suppliers and you’ll be able to choose the porosity of the filter which we recommend sticking to either 20 or 30 microns. Take a look at this comparison chart to see the differences between the MarineLand filtrate and BoxPlunge filter:

How to use hydrogen peroxide on your cold plunge?

Our cold plunge filter works best when combined with an ozone generator and hydrogen peroxide or h2o2. The following is a calculator you can use to calculate how much oxygen peroxide your cold plunge will need:

https://docs.google.com/spreadsheets/d/1x6EcYGLBNyep8GeUzEA_y01lWyd3Ej88/edit#gid=765026793

What is the best cold plunge filter?

The industry standard has become to choose a powerful and reliable water pump such as a Danner 950gph or 1,200gph and hook it up with a whole house filter canister which typically admits pleaded filters of various porosities. The BoxPlunge cold plunge filter is one which meets this criteria where it uses the Danner pump, a whole house filter canister and a 2.5″ by 10″ pleaded filter.