Stealth Flex
Guzzle H2O Stealth Flex - Built-in Water Purification and Filtration
Guzzle H2O Stealth Flex 10 Water Filtration and Purification System
Stealth Flex
Guzzle H2O Stealth Flex 5 - What&
Guzzle H2O Stealth Flex 5 Water Filtration and Purification System
Guzzle H2O Stealth Flex 10 - Built-in Water Purification and Filtration
Guzzle H2O Stealth Flex 10 - What&

Stealth Flex

Built-In UV and Carbon Block Water Purification System

The Guzzle H2O Stealth is a point-of-use water purification and filtration system that treats water where you drink it - at the faucet! The Flex version of our popular Stealth model offers flexibility for installation in tight spaces.

Regular price$565.00
Shipping calculated at checkout.


✓ 2 Year Warranty  |   🌐 Ships Worldwide  |  🔒 Secure Checkout

The Stealth Flex makes your water safe and delicious as you use it. The Flex is a small and compact water filtration and purification unit that is easy to install in your adventure van, overland vehicle, RV, boat, or camper trailer. The Flex is a heavy hitter, turning your onboard tank water into delicious, refreshing water that is safe to drink.

Stealth Specifications:

  • POINT OF USE SYSTEM: Discreet install at galley sink on cold water line of faucet, dedicated faucet optional
  • HIGH FLOW: Recommended flow rate up to 2.1 gallons (8L)***, minimal 3-5 psi pressure drop
  • PROVEN TECHNOLOGY: LED UV-C purification unit 3rd party tested to inactivate 99.99% of bacterial, protozoa, and viruses*and is NSF 55 listed
  • EFFECTIVE FILTRATION: 0.5 micron Activated Carbon Block filtration is highly effective at reducing sediment, chlorine taste and odor, VOCs, NSF 41 emerging contaminants, lead, mercury, and other chemical contaminants**
  • LOW POWER CONSUMPTION: Efficient LED with Instant ON / OFF UV technology conserves power, 0.9 amp when active
  • LOW MAINTENANCE COSTS: Single filter to replace - carbon block filter capacity up to 1000 gallons or 6 months per cartridge, low cost replacements available worldwide. UV is maintenance free - no bulbs to replace
  • RUGGED TECHNOLOGY FOR MOBILE AND OFF-GRID USE: Sturdy construction, solid state electronics
  • APPROVED: All components NSF listed or FDA approved materials
  • WARRANTY: 2 year warranty
  • 12v DC Power

IN THE BOX: Stealth Flex Unit and Installation kit with 3/8” and 1/2” barbed fittings, 3/8” Push to Connect I/O fittings, 15' 12v power cable, 24" PEX tubing, hardware.

*Based on 3rd party testing performed according to the United States EPA Ultraviolet Disinfection Guidance Manual

**Will not remove heavy metals or toxins.

***10 mJ/cm^2 UV dose; 30 mJ/cm^2 @ 1.4 gpm

Download Flex Manual (pdf)

Designed and assembled in USA

    Stealth Features Compared

    FeaturesStealth 5Stealth 10Stealth Flex 5Stealth Flex 10Stealth 2x10Stealth Carbon 5Stealth Carbon 10
    UV purification 30mJ/cm^2xxxxx  
    0.5 micron solid activated carbon block filterxxxxxxx
    Connects to 12v power (includes 15 ft power cable)xxxxx  
    Easy 1 piece installationxx  xxx
    Best for installations with limited spacegoodgoodbestbettergoodbestbetter
    Flow rate1.752.21.752.22.21.752.2
    Power consumption (while active)0.9 Amps0.9 Amps0.9 Amps0.9 Amps0.9 Amps  
    Instant on/offxxxxx  
    Pulsecare self cleaningxxxxx  
    UV lifespan10,000 hours10,000 hours10,000 hours10,000 hours10,000 hours  
    Field repairablexxxxxxx
    NSF 55 listedxxxxx  
    3rd party testedxxxxx  
    DIY installxxxxxxx
    Status lights indicate UV activityxxxxx  
    Size11.3" H
    8.4" D
    4.7" W
    16.3" H
    8.4" D
    4.7" W
    7.6" H
    5.1" D
    7.5" W
    12.6" H
    5.1" D
    7.5" W
    15" H
    5.3" D
    13.9" W
    7.6" H
    5.1" D
    5.8" W
    12.6" H
    5.1" D
    5.8" W

    Stealth Point-of-Use Series

    Built-In Water Purification & Filtration


    The Stealth is a built in water filter and purifier that works on campers, RVs, vans, and boats

    The Guzzle H2O Stealth


    Whether you are installing the STEALTH in your van, RV, boat, or other vehicle, this is the ideal setup.

    We like to install it as close to the point of use as possible. This means you get great tasting and clean water every time you fill up your glass or bottle.

    Other configurations are possible. Please contact us for more information.

    Customer Reviews

    Based on 2 reviews
    Steve Brown
    Great Addition to my Van

    I installed the Stealth Flex 5 in my Sprinter/Revel van. Before, I had to carry an extra water container to avoid drinking water from the fresh water tank that I fill from campgrounds and rivers. The water taste is excellent. Also, when I found I needed to have a part replaced during installation, the company got the part to me in two days. These are great guys! The only downside is that there was very little room under my sink to work in so it did take a while to get it up and running, even with the quick connectors. Well worth it, though.


    Top quality. I can't imagine it being any better.