To meet the needs of multi-activity backcountry adventurers, MSR set out to engineer the most versatile water filter ever.
The Trail Base microfilter kit features modular components that allow it to be used as a gravity system at camp, a pocket-sized filter on the trail, or a fast-and-light reservoir when you need to carry clean water with you.
Whether youre hiking, biking or basecamping, the Trail Base water filter kit offers incredible flexibility and options, making it the one filter that truly adapts to your adventure and the filtration task at hand.
Effective Against: Bacteria (99.9999%), protozoa (99.9%) and particulate. Hollow fibre filter meets U.S. EPA drinking water standards* and NSF protocol P231 testing standard.
Versatile: Modular components allow system to quickly and easily transform from a 2 litre gravity system into a small trail filter and back again.
Simple Transitions: Trail filter simply quick-connects into gravity system to create the complete gravity-fed filter system.
Complete Kit: Includes ultralight, durable clean water reservoir, which features a 3-in-1 cap for easy filling, drinking and pouring.
*U.S. EPA Guide Standard and Protocol for Testing Microbiological Purifiers
Weight: 1 lbs 6 oz / 620 g
Width: 8.5 in / 12.7 cm
Effective against bacteria, particulate and protozoa
Filter: Hollow Fibre
Filter pore size (microns): 0.2
Flow (L/min): 1 litres per min
Flow (strokes per litre): 60
Cartridge life: 1500 litres
Field cleanable: Yes
Field maintainable: Yes
Cartridge replacement indicator: yes
MSR Trail Base Water Filter Kit
For orders below £30 it's currently a very reasonable £3.50 charge.
* We are currently unable to offer an international order/delivery service. Delivery to BFPO usually counts as UK mainland, though (and some BFPO locations are also VAT-exempt).
Orders received by us before 12 Noon are sent by Royal Mail First Class Post or via our courier - depending on their size, weight, value and destination.
Orders received by us from Monday to Noon on Friday are usually delivered the next working day (working days are defined as Monday to Friday, inclusive).
Orders received by us from Friday afternoon to Noon on Monday are generally delivered on Tuesday.
Please note: We usually contact you personally to clarify delivery instructions for larger / more expensive items. This can add a short delay in despatching your order.
For Click & Collect: Please bring order confirmation, the card used for purchase and photo ID to collect your order from our Keswick store during normal opening hours. Please allow 2 working days.