Complete Minimalist Filtration System
Complete Minimalist Filtration System
Optional Add-ons:
Surface Skimmer
Cord Keeper
Danner Spa Vac
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The Ultimate Cold Plunge Filtration System
All-in-One, Plug-and-Play Convenience
Clean Water for 1-Year+ Without Draining
Transform your cold plunge with the original and best, high-performance filtration system designed specifically for chest freezers and other at-home plunge tanks. Say goodbye to the hassle of sourcing individual parts, fittings, and accessories—this kit includes everything you need to get your system running quickly, safely, and effectively.
2-Minute Setup. No Tools Required.
Designed for simplicity and efficiency, our filtration system is up and running in just two minutes—no tools, plumbing experience, or complicated instructions required. Everything arrives in one box, ready for immediate installation. Whether you're a beginner or an experienced cold plunger, this system streamlines your setup and helps maintain clean, crystal-clear water with minimal maintenance.
Compact, Powerful, and Efficient
Despite its compact footprint, this system packs serious power. The robust USA made 1200 GPH pump provides optimal circulation, while the included filtration element efficiently removes particles and debris down to 5-micron skin cells! Its space-saving design ensures it doesn’t get in the way of your plunging experience—just clean, cold water exactly when you need it.
Customizable Venturi Hookup Options
This system includes a high-flow venturi attachment, giving you flexibility depending on how you want to oxygenate or sanitize your water:
- Ozone Compatible: Add your own ozone generator (like the recommended JED 003) to inject ozone directly into the water for advanced sanitation.
- Air Injection Only: Skip the ozone and run a simple air hose to the venturi for continuous air injection—great for oxygenating your plunge without additional equipment. (available as an add-on)
- Outlet Diverter Only: Leave the venturi unconnected to use it purely as a directional water outlet.
Multiple Placement Options for Maximum Flexibility
This filtration system is designed to work with virtually any cold plunge setup. You can place the APEX86 system:
- On the Step of Your Freezer: Ideal if you have at least 9.5 inches of water above the step. The filter will face down for optimal function.
- On the Floor of Your Plunge: Perfect for setups without a step or with lower water levels. Place the unit with the filter facing upward. Note: for best venturi performance, keep water depth to around 22 inches or less, as too much depth can reduce venturi injection.
Upgrade your system with our:
- Spa Vacuum Attachment

-
Cord Keeper

Frequently asked questions about this kit and cold plunge sanitation in general:
https://apex86.net/pages/faq
Videos
Unboxing and Setup:
How to use your system and keep your water crystal clear:
In The Box
What’s in the Box
Every kit comes fully equipped with these high-quality components:
- Danner 1200 GPH Pump
(120v, Made in the USA, 5-Year Warranty) - 10" x 2.5" Filter Housing
- 5-Micron Filter Cartridge
- APEX86 Pre-Filter
- APEX86 Custom Pump Base
- APEX86 High-Flow Venturi
- PVC Union and Fittings for Easy Assembly
Shipping
Shipping & Delivery
We typically pack and ship your filtration system within 1-2 business days. All orders are shipped via USPS Priority Mail (2–3 day delivery estimate). Standard shipping includes $100 insurance, but we strongly recommend selecting the $2.99 fully insured option. This protects the full value of your purchase and offers a faster, photo-based claims process in the rare event of damage during transit.
International Shipping
Please be aware that international shipments may be subject to customs duties or VAT depending on your country. Check with your local authorities to avoid unexpected fees.
Filters
Filter Maintenance & Replacement
Recommended replacement filters (5-micron) can be found here.
If the venturi stops producing bubbles, it’s likely time to clean or replace the filter. To clean: rinse with water and soak in a mild bleach solution ~3oz bleach inside the housing, topped off with water; for 2 hours. Repeat every 2 weeks to maximize filter life.
Important
Usage Notes
- Hand wash filtration components only with warm, soapy water. Avoid hot water or dishwashers, as high temperatures may damage plastic parts.
- Safety first: Always unplug the pump, freezer, and any connected devices before entering the water.
- Never run the pump dry. It must always be submerged in water to prevent damage not covered by warranty.
- Pump is 120V only. For countries using 220V–240V power, a step-down transformer rated for at least 300W or 3 amps is required.
The pump is a huge upgrade for my fire cold plunge. I haven’t replaced the water since I installed it about 2 months ago. Recommended!
Great filter and pump combo! Takes up little room for the amount of benefit you get. Setup took 10 minutes and my water has never been cleaner. Worth every penny.
I was really skeptical about this filter when I first saw it. Most cold plunges give an aquarium filter that doesn't move water and you can't find replacement filters for- this system is no joke. It's a 3 minute set up and it's like a jetstream in my modified deep freezer cold plunge. Water is crystal clear- *highly* recommend
I had some duplicate items in my cart and Lars caught it, reached out proactively without shipping the order and worked with me to correct it. Hard to find that service in todays world.
The products deliver as promised. My goodness does this feel so much more legit than my little aquarium filter I had running, which barely got the job done. Within 5 minutes of opening the box this thing was fully setup and running with impressive power. Within 10 minutes of running it had already collected more debris than the old filter had. so impressed!
I do need to figure out how to sequence how often it will run but will do soon enough.
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