MSR New Guardian Gravity Purifier Review

What Makes MSR New Guardian Gravity Purifier Stand Out?

The MSR New Guardian Gravity Purifier isn’t just another water filter; it’s a rugged, field-ready purification system designed to remove viruses, bacteria, protozoa, and even microplastics. Built by MSR, a company known for its commitment to quality outdoor gear, this purifier stands out with its military-grade construction and ability to filter a significant volume of water with minimal effort. It promises clean and safe drinking water no matter where your adventures take you.

What led me to this product was the need for a reliable, hands-free water purification solution for extended backcountry trips with small groups. I was tired of constantly pumping water or relying solely on chemical treatments. I needed something robust and capable of handling questionable water sources.

Upon unboxing, I was immediately impressed by the solid feel of the MSR New Guardian Gravity Purifier. The materials felt durable, and the 10-liter reservoir bag seemed like it could withstand some serious abuse. The overall design appeared well-thought-out, suggesting easy setup and use.

Compared to other gravity filters I’ve used, like the Sawyer Squeeze or the Platypus GravityWorks, the MSR New Guardian Gravity Purifier felt more robust and specifically addressed virus removal, a critical need when traveling internationally or encountering potentially contaminated water sources. I chose it over the others for its comprehensive purification capabilities and its reputation for reliability in demanding environments. My initial impression was excitement mixed with a bit of healthy skepticism, eager to test its claims in the field.

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Real-World Testing: Putting MSR New Guardian Gravity Purifier to the Test

First Use Experience

My first test of the MSR New Guardian Gravity Purifier was on a week-long backpacking trip in the remote backcountry of the Pacific Northwest. The water sources were plentiful, but known to be potentially contaminated with both giardia and viruses. I needed to ensure a clean water supply for my whole team.

The purifier performed admirably in the variable conditions, from sunny afternoons to cold, rainy evenings. The water flowed consistently, even with some sediment in the source water, and the taste was noticeably improved thanks to the activated carbon filter. Setting it up was straightforward, and the gravity-fed system required minimal effort. I only needed to hang the bag from a tree.

Initially, the flow rate was slightly slower than expected, but after opening the purge hose a few times as instructed, it improved significantly. Also, I found that maximizing the height difference between the bag and the receptacle made a substantial difference.

Extended Use & Reliability

After several months of consistent use on various camping and backpacking trips, the MSR New Guardian Gravity Purifier has proven to be a reliable and durable piece of equipment. Despite being subjected to rough handling and exposure to the elements, there are no signs of significant wear and tear. I have not seen any leaks or damage.

Cleaning the purifier is simple: just opening the purge hose flushes the system. This is key in maintaining the flow rate and preventing clogs. Compared to my previous experiences with pump filters that required frequent disassembly and cleaning, the MSR New Guardian Gravity Purifier is a significant improvement in terms of ease of maintenance. The flow rate remains high, consistently delivering clean water.

Breaking Down the Features of MSR New Guardian Gravity Purifier

Specifications

The MSR New Guardian Gravity Purifier boasts impressive specifications for a portable water purification system. It features a 10-liter capacity reservoir, weighs a mere 0.53 kg, and has dimensions of 12 inches (length) x 4 inches (width) x 4 inches (height). Its core is a UF Hollow Fiber filter with a pore size of 0.02 microns, ensuring the removal of viruses, bacteria, protozoa, sediment, and microplastics. The filter cartridge is rated for 3000+ liters, and it adheres to the NSF P248 military testing standard.

These specifications are critical because they directly impact the purifier’s effectiveness and usability in the field. The large capacity allows for fewer refills, the lightweight design makes it easy to pack, and the stringent filtration standards provide peace of mind when dealing with questionable water sources. The long filter life ensures prolonged use without the need for frequent replacements.

Performance & Functionality

The MSR New Guardian Gravity Purifier excels in providing safe, clean drinking water in various conditions. Its ability to remove viruses sets it apart from many other gravity filters on the market. It provides a much safer drinking option. The water tastes noticeably better thanks to the activated carbon stage.

A key strength is its hands-free operation, allowing users to focus on other tasks while the water is being purified. The simple cleaning process is another advantage. The only potential weakness is the initial flow rate, which can be optimized by ensuring adequate hang height and regular purging. Overall, it meets and even exceeds expectations for a portable water purification system designed for demanding environments.

Design & Ergonomics

The build quality of the MSR New Guardian Gravity Purifier is robust, utilizing durable materials that can withstand the rigors of outdoor use. Its light weight is remarkable considering its capacity and purification capabilities. The system is designed for ease of use, with intuitive setup and operation.

There is a minimal learning curve; most users can quickly master the system in a few minutes. The reservoir is easy to fill. The only thing I would change is a more robust hanging strap.

Durability & Maintenance

The MSR New Guardian Gravity Purifier is built to last, with a rugged construction that should withstand years of use. The hollow fiber filter is robust and resistant to damage. Maintenance is simple, primarily involving regular purging to maintain flow rate.

With proper care, the MSR New Guardian Gravity Purifier promises to be a long-lasting and reliable component of your outdoor gear. Replacement filters are available, further extending its lifespan.

Accessories and Customization Options

The MSR New Guardian Gravity Purifier comes with a 10-liter reservoir bag, a UF Hollow Fiber filter with activated carbon, and a purge hose. There are no specific customization options for the purifier itself. However, the outlet hose can be connected to various water bottles and hydration reservoirs using standard adaptors.

The system is also compatible with pre-filters to further reduce sediment and prolong the life of the main filter. This is beneficial in extremely turbid water conditions.

Pros and Cons of MSR New Guardian Gravity Purifier

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Who Should Buy MSR New Guardian Gravity Purifier?

The MSR New Guardian Gravity Purifier is perfect for international travelers, backcountry campers, survivalists, and anyone who needs a reliable source of safe drinking water in potentially contaminated environments. It is especially well-suited for small groups or families who require a higher volume of purified water.

Those on a very tight budget or who primarily hike in areas with consistently clean water sources might find a simpler, less expensive filter sufficient. A pre-filter is a must-have accessory for use in silty or muddy water conditions.

Conclusion on MSR New Guardian Gravity Purifier

The MSR New Guardian Gravity Purifier is a top-tier water purification system that delivers on its promises of safety, reliability, and ease of use. While the price point is higher than some alternatives, the peace of mind it provides, especially in situations where water quality is uncertain, makes it a worthwhile investment. Its robust construction, high capacity, and ability to remove viruses set it apart from the competition.

I would personally recommend the MSR New Guardian Gravity Purifier to anyone who values safe, clean drinking water and demands a durable, dependable purification system for their outdoor adventures. Don’t compromise on your health – invest in the MSR New Guardian Gravity Purifier and ensure access to clean water wherever you go.