Cold plunge water filter kit upgrade with clear housing, three pleated cartridges, and packaging box.
Before & after tubs: 20-micron cold plunge water filter transforms murky green water into sparkling clean and clear.
Complete outdoor cold plunge system with black tub, integrated water filter, and 42°F chiller for clean, clear water.
Clear cold plunge water filter, 20-micron cartridge, on black tub. Magnified brass connection shows easy installation.
Clear cold plunge water filter kit integrating with black chiller and inflatable tub for consistently cold plunge water.
Clear cold plunge water filter with 20-micron pleated cartridge for clean, cold plunge water, set in an outdoor garden.
Cold plunge filter kit: clear housing with 20-micron cartridge, three replacement filters, and connectors, showing dimensions.
Cold plunge water filter kit upgrade with clear housing, three pleated cartridges, and packaging box.
Before & after tubs: 20-micron cold plunge water filter transforms murky green water into sparkling clean and clear.
Complete outdoor cold plunge system with black tub, integrated water filter, and 42°F chiller for clean, clear water.
Clear cold plunge water filter, 20-micron cartridge, on black tub. Magnified brass connection shows easy installation.
Clear cold plunge water filter kit integrating with black chiller and inflatable tub for consistently cold plunge water.
Clear cold plunge water filter with 20-micron pleated cartridge for clean, cold plunge water, set in an outdoor garden.
Cold plunge filter kit: clear housing with 20-micron cartridge, three replacement filters, and connectors, showing dimensions.

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.

$55.00
/
20-micron 20-micron
Easy Replacement Easy Replacement
Built to Last Built to Last
Extend Chiller Life Extend Chiller Life

Free Fast Shipping

1-Year Warranty

30-Day Easy Return

Port Size:
✧ filter housing Inlet/Outlet: 1/2" FNPT (female)
✧ Connectors: 1/2" MNPT (male)
Filtration Precision:
✧ 20-micron nominal filtration
✧ Captures fine sediment, particles, and debris
Compatibility:
✧ Compatible Plunge Chill chillers
✧ Fits most 1/2" cold plunge tubs
Air Release Valve:
✧ Built-in valve allows fast air release during setup or filter change
✧ Helps prevent airlocks and flow issues

Installation:
✧ Inlet and outlet clearly marked on housing
✧Correct Water Flow:
Tub Water Outlet ➡️ Chiller IN ➡️ Chiller OUT ➡️ Filter IN ➡️ Filter OUT ➡️ Tub Water Inlet
✧ Must follow correct water flow direction
Filter Lifespan:
✧Replace cartridge every 4–6 weeks
✧Frequency depends on water quality and usage
Maintenance:
✧Tool-free filter changes
✧Twist-off lid for quick access
Housing Material:
✧Durable, corrosion-resistant plastic

  • 1x Filter Housing 
  • 3x Filter Cartridges
  • 2x 1/2'MNPT connectors  

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Shipping

All orders are shipped from our U.S. warehouse. Shipping is free within mainland USA. We mainly use FedEx, but may use other trusted carriers when needed.

Delivery Time: 

  • Mainland USA: 2–5 days. 
  • Orders are usually sent out within 1 day.

For any questions, just reply to your order confirmation email.

Returns
 If you're not completely satisfied with your purchase, you have 30 days to return it for a full refund.

To be eligible for a refund:

  • The product must be in good condition, free of major wear or damage.
  • All original parts and packaging must be included.
  • Light use is acceptable — just wipe it down and repack it before returning.

Once we receive and inspect the item, a refund will be issued within 5 business days, minus a small return shipping fee.,but we do not charge a restocking fee. If you have any questions, please contact us at support@plungechill.com.Visit our Return Policy.

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FAQs OF COLD PLUNGE CHILLER

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.

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.

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.

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.

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.

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