MSR 4 Litre AutoFlow Gravity Filter System

MSR 4 Litre AutoFlow Gravity Filter System

Sold Out
RRP $274.95
SAVE $25.00 (9%)

or 4 payments of $62.49 with Info

Choose Option

Calculate Shipping

Free Shipping - $0.00
Delivery Australia Wide in 10-15 business days. Not available to PO Boxes or Australia Post Parcel Lockers.

The supreme ease of the AutoFlow Gravity Filter has converted many backcountry travelers, hikers and outdoors people to pump-free water filtration. Now, it offers the luxury of effortless water storage and filtration in a more compact, lightweight and streamlined system. Efficient hollow fiber technology filters up to 1.75 liters per minute, and quick and easy tool-free cleanings maintain high flow rates on extended expeditions. Available in:

  • 2-liter system is perfect for backpacking pairs.
  • 4-liter system for groups and base camps


  • Tested: Meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water.
  • No Pumping: Lets gravity do the work so you don't have to.
  • Fast: Filters more than 1.75 liters per minute.
  • Lightweight: 2-liter system weighs only 300 g (10 oz.). 4-liter system weighs just 315 (11.1 oz.)
  • Field-Maintainable: Can be backflushed repeatedly without disassembly to regain flow rates.
  • Adaptable: Filter directly into most any Nalgene Wide Mouth (63mm) or reservoir with the included Universal Bottle Adapter.
  • Made in USA

System includes:

  • 1x MSR 0.2 Micron Autoflow Gravity Microfilter
  • 1x MSR Dirty Collection Reservoir (2L or 4L) with built-in femal Quick Connect fitting
  • 1x Male Quick Disconnect Fitting
  • 1x Universal Bottle Adaptor (fits to Nalgene wide mouth)
  • 1x Clean Side Cover
  • 1x Shutoff Clamp
  • 1x Inlet hose (30cm)
  • 1x Outlet hose (122cm)
  • 1x Instructions
  • 1x Filter Test Guide
  • 1x Storage Bag


  • Filtration: 0.2 Micron
  • Filter Media: Hollow Fibre Membrane
  • Lifespan: 1500 Litres+ (Depending on water source)
  • Reservoir: Both 2L & 4L are food safe lined to reduce taste/odors
  • Weight (2 Litre System): 300g (10oz)
  • Width (2 Litre System):  15.6cm (8.5")
  • Length (2 Litre System): 12.7cm (15")
  • Weight (4 Litre System): 320g (11.1oz)
  • Width (4 Litre System):  28.7cm (11.3")
  • Length (4 Litre System): 50.8cm (20")

Download Manual here

More From This Category