Product Details LifeStraw Peak Series Solo Water Filter is an ultra-lightweight (only 1.7oz), compact (just 5.1"), portable water filtration device that removes bacteria, parasites, microplastics, silt, sand, and cloudiness from drinking water. The standard 28mm threading on the filter allows it to be screwed onto most common water bottles. The one-handed flip cap makes on-the-go filtration super easy and fast: fill up a 1L bottle in just 20 seconds. Great for hiking, backpacking, camping, emergency situations, travel or on-the-go needs. At less than 2 ounces, and 2,000L of clean drinking water, no backpack, pocket, emergency bag, or glove compartment should be without one. Enhanced microfilter performance - our re-engineered filter helps reduce clogging from sand & silt for better flow rate over the long haul Highly versatile: Standard 28mm PCO threads to screw on to standard water bottles Made with premium, durable 50% post-consumer recycled BPA free plastic. Includes leak-proof top and bottom caps. Dimensions Weight: 1.7oz / 48.2g Height: 5.1in x 1.3in / 12.9cm x 3.30cm LifeStraw Peak Series Straw Filter Protects Against: 99.999999% of bacteria 99.999% of parasites 99.999% of microplastics, silt, sand, and cloudiness Lasts up to 500 gal | 2,000 L (the filter will stop allowing water to flow through once it has reached the end of its lifetime!) Pore size: 0.2 micron