Frequently Asked Questions

We get a number of different frequently asked questions. We will do our best to answer them on this page, but please always feel free to reach out to us directly via our contact us page and we will do our best to answer your question as quickly as we can.

Guzzle Product Questions

Guzzle H2O drinking water systems are great for any situation where available water is just not good enough...whether there is a health risk due to parasites, bacteria, or viruses, or if the taste or smell leave you less than thirsty. We want water to be reliably clean every single time. 

Our systems which contain a carbon block filtration component, screen sediment, turbidity, and adsorb much of the chlorine and chloramine that municipalities add to treat their water supply.

Our UV-C LED purification systems will inactivate 99.99% of the protozoan parasites, bacteria, and viruses from your drinking water. (This is the part that saves you from extra trips to the toilet!)

Other products you may see at an outdoor store aren’t quite the same. They often require pumping by hand or long wait periods that rely on gravity. Most products don’t address BOTH palatability and microbiological hazards. Some will do a single water bottle in a short period of time, but that’s it. Others are difficult to recharge.

Our UV purification + carbon filtration products use only the best components that are third party tested. We use the same UV purifier that they use on the International Space Station. We use a two-step process to ensure that nothing gets by in the way of contaminants. The Stream is in a rugged and durable case that can go with you anywhere. It can filter and purify 32 gallons of water on a single charge, while pumping from a creek or other body of water, OR seamlessly connect to faucets. The Stealth is designed to be installed on a plumbed system and draws the smallest amount of power possible and only draws power when the faucet is open and water is flowing. 

Additionally, our drinking water systems can filter and purify water for your entire group. No special bottles needed. If you take the price of a personal purification bottle or system and multiply it out for your family, biking buddies, fishing friends, etc, our products would quickly become more cost effective.

We designed Guzzle H2O drinking water systems to give you the highest and most reliable performance in the industry.

In order to work its best, the pump typically needs to be within 6 feet of the water source. We suggest taking the Stream down to the edge of the water source and then pumping through a long hose into the vehicle’s tank. The Stream will pump 32 gallons on a single charge at about 0.75 gallons per minute.

When you order a Stream, you pick either a 12v or 110/220v charger. You can add the other charger on as an option. We also have a solar panel setup if you’ll be off the grid. Please see all of those in Accessories.

No. The unit has a flow sensor that turns the LED UV on instantly when the water moves through the system. It immediately switches off when the flow stops.

It runs on 12v and draws about 1 amp when water is flowing. Otherwise it does not draw power. For installation instructions, please see our manual.

The Stealth serial numbers can be found on the mounting plate.

The Stream serial numbers can be found inside the lid of the case.

Our other products & accessories do not have serial numbers.

Click over to our blog post on Understanding Your UV's Status Lights.


The Carbon Block Filter component removes sediment, turbidity, and adsorbs much of the chlorine and chloramine that municipalities add to treat their water supply. Doing this makes drinking water taste and smell much better. Carbon Block filtration is the best know process for improving the taste of water.

The UV-C LED purification component of a Guzzle H2O system will inactivate 99.99% of the protozoan parasites, bacteria, and viruses from your drinking water. 

Note: We have some carbon only products that do not contain a UV component.

Ingestion of microorganisms typically leads to infection of the gastrointestinal track. Symptoms may begin in 10 hours, or may take up to several weeks from the point of infection depending on the type and amount ingested. Also the overall strength and and constitution of the individual is a factor. Symptoms may include diarrhea, abdominal cramps and pain, nausea, vomiting, muscle cramps, fever, fatigue, headache, chills, loss of appetite, and, in the case of hepatitis, dark urine and jaundice. Symptoms usually dissipate in a couple of days or weeks, depending on the factors above. Healthy adults will generally defeat the illness without needing medical attention. Infants, young children, elderly, pregnant, and immune-compromised individuals are at higher risk of needing medical attention or having complications from an illness.

No. Guzzle H20 products do not remove toxins, heavy metals, or treat chemically contaminated water, and will not make potable water from sources with these contaminants.

A filter removes contaminants from water by passing the water through a porous material and physically removing contaminates either mechanically or through molecular attraction. A purifier inactivates organisms in the water to standards set by the EPA. Guzzle H2O uses ultraviolet rays to inactivate protozoa, bacteria, and viruses. Some filters can remove most protozoa and bacteria, but typically cannot remove viruses. Most Guzzle H2O system performs BOTH filtration and purification to make your water delicious and safe.

Guzzle H2O UV + carbon block filtration systems are most effective at removing sediment and turbidity as small as 0.5 microns, chlorine, chloramine, poor taste and odor, and inactivating 99.99% of protozoa, bacteria, and viruses.

In the process of filtering water, activated carbon is often used to remove contaminants and impurities. Carbon is very good filtration medium because of thousands of tiny pores that can adsorb water. For example, a pound of activated carbon provides 125 acres of filtering surface area. The carbon is positively charged to attract negatively charged impurities such as chlorine, chemicals and volatile organic compounds.

Ultraviolet (UV) water disinfection technology has become an increasingly popular tool in water treatment over the past two decades, due in part to its ability to provide treatment without the use of harmful chemicals. UV represents wavelengths that fall between visible light and x-ray on the electromagnetic spectrum. The UV range can be further divided into UV-A, UV-B, UV-C, and Vacuum-UV. The UV-C portion represents wavelengths from 200 nm - 280 nm. UV-C photons penetrate cells and damage the nucleic acid, rendering them incapable of reproduction, or microbiologically inactive.

Inactivate means to destroy a pathogenic organism by breaking up its DNA and rendering it harmless.

The carbon block filter is tested and verified to remove 85% of particles 0.5 microns or greater.

In general, carbon filters remove at least 81 chemicals and are effective at reducing another 52. According to the EPA, activated carbon is the only filtering material that removes all 12 identified herbicides and 14 pesticides, along with all 32 identified organic contaminants.

Activated carbon also removes chemicals, such as chlorine, that affect the aesthetic quality of your drinking water. Most public water systems in the United States contain chlorine as a disinfectant. However, chlorine can lead to an unpleasant taste and smell in tap water as well as create potentially carcinogenic byproducts. Activated carbon filters out chlorine byproducts and VOCs, to produce clean water.

Note that on its own, activated carbon doesn’t remove every contaminant. Certain minerals, salts, and metals can slip through the filter. However, much of this is only true for GAC filters. Carbon block filters are capable of removing many more pollutants, including metals such as lead. Carbon block filters also remove microbiological contaminants from drinking water, including waterborne pathogens. The best carbon block filters reduce pollutants like arsenic, asbestos, mercury, and radon.

While no filter is capable of removing every contaminant from water, carbon block filters come close. Additionally, carbon filtration systems target pollution without stripping water of beneficial compounds like minerals, making your water as safe and healthy as possible.


Guzzle H2O LLC has received a patent for the Guzzle H2O Stream - US Patent No. 11584664. Other Guzzle H2O products may be protected by one or more additional patents or pending patents in the US and elsewhere.


The best way to contact us is email. Your emails get routed to the best possible person to answer your question. Either use the form on the contact us page or send us an email

The best way to get in touch with us is email. If you would like to speak with a Guzzle H2O representative on the phone, please send us an email with your call back number and a brief description of your issue. Someone will call you back within 1 business day.

Why do you do it this way? It allows us to direct your question to the most suitable person we have to answer your question.

Shipping & Returns

Please check out the Shipping & Returns page for the most up to date information on shipping.

Yes, we ship worldwide*, except for Australia and New Zealand, which are serviced directly by Off-Grid Adventure Co.

Our website allows you to shop in your own currency. All international orders are shipped via DHL. Depending on your country's regular practices, taxes and duty are either included in the price of the product as listed on the website, or added separately at checkout.

Please contact us if you have additional questions.

*There are a very limited number of countries that we do not ship to due to limitations in our vendor agreements or due to war, political situations, etc, that prevent the shipping companies from operating safely.

Any item purchased online directly from may be returned or exchanged within 30 days of the original purchase. Items must be in new condition. Used filter cartridges cannot be returned. Purchaser is responsible for return shipping charges. For a return authorization, or to coordinate an exchange, please email

Repairs & Refurbishments

At Guzzle H2O we believe one of the ways we can reduce trash and our ecological footprint is to build quality products that last a lifetime. We also know that our customers are adventurous and push the limits of their gear. Guzzle H2O products are designed and built to be easily repaired and refurbished. Please contact to schedule service to any of your Guzzle H2O products.


2 years from the date of purchase. See full warranty terms and conditions.