The Platypus GravityWorks water filter is a kit that includes all the components needed to set up a gravity-based water filter system. Great for foundation camping or bigger group backpacking excursions, the GravityWorks 4.0L Filter System carries a 4.0L Dirty reservoir plus 4.0L Clean This review discusses the best backpacking water filters currently on the market. Below is a list of the top 5 water filters and a complete buyers guide so you can choose which one is Aquamira Chlorine Dioxide - Best Chlorine. Platypus GravityWorks - Best Gravity. Katadyn Hiker Pro. SteriPen Aqua UV. Buy the Platypus Gravityworks 4l Filter System on sale for a great price at our online store! If you have questions about the Platypus Gravityworks 4l Filtering up to 1.75 liters a minute without any pumping, the high-capacity GravityWorks 4.0L water filter is one of the easiest and fastest ways to Buy the Platypus GravityWorks 4.0L Filter System online or shop all from Backcountry.com. If the GravityWorks 4.0L Filter System is pretty dang easy to operate, and there are plenty of devotees who can't get enough of the world's simplest water filtration system. 119.99 €. The water to be purified is filled in the bag marked "dirty" and flows through gravity into the filter and then as clean water into the clean water reservoir. The Platy™ zip closure developed by Platypus makes filling considerably easier. The small pack size and weight make the set ideal for Buy the Platypus GravityWorks 4.0 Litre Water Filter online at the LOWEST PRICE with fast FREE DELIVERY & SAME DAY Dispatch from Snowys. By using the natural force of gravity, Platypus have done away with moving parts and allowed you to go about setting up camp as the water is filtered This makes it easy to filter large amounts of water without any manual effort. We were originally concerned about the large 10 liter bag, but the whole kit only weighs 10.8 oz and it seems to There are more popular competitors, like the Platypus GravityWorks, but we can't justify the extra $80-$120. The Platypus GravityWorks Filter is a God send. It filters out everything I'm worried about accidentally ingesting plus The GravityWorks helped us get back on the trail quickly many times. You can filter 4 liters of water very quickly, get everyone re-hydrated fast and get all bottles topped The Platypus GravityWorks does best with deeper water sources, such as lakes or rivers, since you need to be able to scoop up the water with the The Katadyn Hiker Pro is a standard pump filter that requires some manual labor to get your water but works well, especially in areas without high flowing