MSR Thru-Link In-Line Microfilter

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MSR’s Thru-Link inline filter turns your hydration reservoir into a filtration system, giving you clean water on the go. Ultralight and rugged, this little filter quick-connects into any reservoir system and lets you filter as you drink and hike.

MSR says

Adding minimal gear to your pack, the Thru-Link inline filter is the simplest solution to clean water on the go. Just click it into your hydration reservoir and you’re ready to filter as you drink and hike. Engineered for high-flow drinking, it makes it easy to stay hydrated on long day hikes and fast-paced missions. The filter is compatible with any reservoir system, and uses both hollow fiber technology and activated carbon to provide reliable, safe and taste-free water. At camp, the Thru-Link lets you use your reservoir as a gravity system for the luxury of pump-free filtration.

Our Verdict

MSR’s Thru-Link In-Line Microfilter is a great piece of kit that can keep you safe and allow you to stay hydrated when you’re well away from trusted water sources. It is effective against bacteria, protozoa and particulates. The design also reduces chemicals, tastes and odours from your water which is amazing for such a lightweight, simple looking piece of kit. Weighing just 71g this is an ideal filter for weight conscious travellers who need to filter water on the go.

The in-line design provides a super versatile piece of kit that can connect drinking tubes, hydration bladders and is compatible with any hydration reservoir on the market. Once placed in the line of your favoured hydration system, it allows for a high flow so you can simply fill up your reservoir and filter as and when you need to drink. The versatility of this system is really good and if you’re after an ‘in-line’ filter rather than a handheld one this is definitely worth serious consideration. 

– Reviewed by Ultralight Outdoor Gear

Help and advice:

Features

• Keep Moving: Don’t stop to filter–just scoop and go. Engineered specifically for high-flow, easy drinking.
• Two-Stage Filtration: Fast-flow hollow fiber removes pathogens, particulate & microplastics; activated carbon reduces chemicals, tastes and odors.
• Quick-Connect: Compatible with any hydration reservoir system on the market.
• Proven: Used by the U.S. military for more than a decade; rugged ultrasonic welded housing for reliable durability.
• Effective Against: Bacteria (99.9999%), protozoa (99.9%) and particulate (dirt, microplastics). Meets U.S. EPA drinking water standards* and NSF protocol P231 testing standard for removal of bacteria and protozoa.

Specifications

Tech Specs

• Weight: 71g
• Dimensions: 41 x 19cm (1.6 x 7.5in)
• Filter matrix: Hollow Fiber
• Filter pore size: 0.2 Micron
• Effective against: Protozoa, Bacteria, Particulate, Taste/Odor
• Includes: Thru-Link Microfilter, Barbed Quick-Connect fitting

Performance & Extras

• Flow (liters per minute): 1.2 liter per minute
• Cartridge lift: 1000 liters
• Field cleanable: Yes
• Pump: No
• Gravity: Yes
• Water bottle adapter: No
• End of life indicator: Yes