MSR Thru-Link InLine Filter

The filter is designed with standard quick-connect fittings that splice directly into your hydration reservoir's drinking tube. You simply cut the tube, insert the filter, and snap it into place for a seamless flow.

No, the Thru-Link is designed to remove bacteria, protozoa, and particulate matter, but it is not rated for virus removal. If you are traveling in areas where viruses are a known concern, you will need to use a chemical treatment or purifier in conjunction with this filter.

Yes, it functions perfectly as a gravity-fed system. You can attach it to your reservoir and hang it from a tree or branch to let gravity do the work, which is a great way to filter water for cooking or cleaning without needing to suck through the hose.

You will notice a significant decrease in flow rate when the filter media becomes clogged with sediment or debris. MSR recommends replacing the filter cartridge after it has processed approximately 1,000 liters of water or if you notice the flow has slowed to an unusable speed.

Yes, the integrated activated carbon stage is specifically included to reduce chemical impurities, chlorine, and unpleasant tastes or odors. It makes water from backcountry sources much more palatable than hollow fiber filtration alone.

The Thru-Link is relatively low maintenance, but you should backflush it periodically if you are filtering silty or cloudy water to maintain flow. Because it is an inline system, it is generally less prone to clogging than straw-style filters, but keeping it clean is key to its longevity.