Keep your cold plunge water clean and clear with this easy-to-install bath water filter kit—designed for tubs and chillers, with a 20-micron cartridge that traps dirt, debris, and more.
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Excellent 4.7
“Such a great company to work with. All the products are amazing. I have one and absolutely love it. Best purchase. I am a loyal long time customer.” —Mark Hakim
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Port Size & Fittings• Housing Ports: 1/2" FNPT (female) inlet & outlet | Connectors: 1/2" MNPT (male)• Compatibility: Compatible with Plunge Chill chillers and most 1/2" cold plunge tubs
Filtration Performance• Filtration Precision: 20-micron nominal filtration• Particle Capture: Captures fine sediment, sand, particles, and debris
Build & Pressure Management• Housing Material: Durable, corrosion-resistant plastic• Pressure & Priming: Built-in air release valve for fast purging and airlock prevention
Installation & Flow• Flow Alignment: Clear directional inlet and outlet markings on housing• System Routing: Tub Outlet ➡️ Chiller IN ➡️ Chiller OUT ➡️ Filter IN ➡️ Filter OUT ➡️ Tub Inlet
Maintenance & Replacement• Access Design: Tool-free twist-off lid for quick cartridge access• Cartridge Lifespan: Replace every 4–6 weeks (varies with water quality and frequency of use)
Always observe the directional flow markings during installation to ensure correct water circulation. Replacement intervals may vary based on plunge frequency, water treatment, and bather load.
1 x Filter Housing
3 x Filter Cartridges
2 x 1/2" MNPT Connectors
Get to Know Your Product
COLD PLUNGE WATER FILTER UPGRADE
Keep your cold plunge water clean and clear with this easy-to-install bath water filter kit—designed for tubs and chillers, with a 20-micron cartridge that traps dirt, debris, and more.
More Product Information
Keep your cold plunge water clean and clear with this easy-to-install bath water filter kit—designed for tubs and chillers, with a 20-micron cartridge that traps dirt, debris, and more.
Use & Care
How do I know when the filter cartridge needs replacing?
You'll notice reduced water flow or a slight change in water clarity when the cartridge is due for replacement. For best results, check your filter every month and swap the cartridge if you see buildup or slower circulation.
How do I remove air trapped inside the filter after installation?
Simply open the air release valve on the filter to allow water to flow in. When the water level inside the filter stabilizes and stops rising close the valve. This ensures no air pockets remain inside the filter, allowing smooth water flow and effective filtration.
Will using this filter improve the lifespan of my cold plunge chiller?
Absolutely. By filtering out dirt and impurities before they reach the chiller, this filter prevents clogging and wear, helping extend the life and efficiency of your equipment.
Can I reuse the filter cartridge after cleaning?
For optimal performance, we recommend replacing the cartridge rather than cleaning and reusing it, as the 20-micron fibers trap very fine particles that are hard to fully remove.
Can I use the filter with DIY cold plunge setups?
Yes! Our filter kit is compatible with any cold plunge system using standard 1/2 fittings, making it easy to upgrade or add filtration to your custom or DIY tub and chiller.
What Customers Are Saying About COLD PLUNGE WATER FILTER UPGRADE
Customer Reviews
Overall rating: 4.7 / 5 from 182 reviews.
I had questions about whether this would work with my setup before ordering. The information I received helped me feel confident
I originally ignored accessories and focused only on the chiller. After using the setup for a few months I realized good filtration matters just as much
I did not buy this when I first got my plunge and honestly wish I had. After using it regularly I realized water maintenance is a big part of the experience
I am so glad I picked up this filter upgrade. Keeping the water clean was becoming a real chore before I installed this. Now the water stays crystal clear for much longer and it honestly saves me a ton of time on maintenance. It is a simple addition that makes a huge difference in the overall experience.
The filter was an easy addition to my setup and has helped keep the water clearer. I like that I can enjoy my plunge without thinking about cleaning it all the time.
Honestly didn’t think accessories would matter this much, but the skimmer and filter combo keeps the tub way cleaner. Less maintenance, more actual cold plunging.
I did not think much about filtration when I first bought my plunge. After using it regularly, I realized keeping the water clean is just as important as keeping it cold
I like that Plunge Chill offers accessories that help you improve your setup over time. This felt like a natural next step after getting comfortable with my plunge
This was a simple upgrade that made maintaining my plunge much easier. I use my setup often and this helps me spend less time worrying about water care