Lightweight, easy to use portable water filter removes harmful bacteria, protozoa, cysts, sediment, And 100% of microplastics; Perfect for outdoor adventures, travel, or emergency preparedness The Sawyer Micro Squeeze Filter is reusable and easy to clean, lasting up to 100,000 gallons. The fiber walls inside Sawyer's hollow fiber membrane filters are thicker, making them stronger than other typical hollow fiber membrane which allows for more rigorous backwashing. Durable, packable, and ultralight, this foldable 750ml pouch is made from extra-tough TPU for fast filtration wherever you need it, TPU pouch is BPA and PVC free. 100% of Sawyer filters individually tested three times to performance standards by Sawyer The system weighs less than 4 ounces and includes a cleaning coupling and cleaning plunger.