Quickly access potable water on the move or in the saddle while in the backcountry.. Compatible with all HydraPak Squeeze bottles, the Breakaway®+ Cap offers an ideal filtration system for bicyclists or backcountry adventurers heading out on longer excursions with limited access to hydration. Care: Avoid freezing filter. Freezing may ruin the hollow fiber membrane. If in freezing conditions we recommend you keep the filter in your pocket or near your body to prevent freezing. *Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42. Included in the package: - Breakaway+ Filter Cap - BackFlush Adapter - MuckGuard Dust Cover - Filter Manual - Basic Care & Use Instructions Specifications: - Cap Size: 63 mm / 2.8 in - Dimensions: 115 mm / 4.5 in - Weight: 65 g / 2.3 oz - Material: TPU, ABS, POM, PP, EPDM, Silicone, Hollow Fiber