The SwiftFlow DayCap Bottle Filter turns your trusted wide-mouth bottle into a trail-ready purifier. Engineered for high flow, this water filter lets you sip safely without slow suction or awkward pumping.
- Works with Nalgene, Hydro Flask, and YETI Yonder™ bottles
- Removable hollow fiber filter kills 99.9999% of bacteria and 99.9% of protozoa
- No drop in drinking experience — flow is smooth, fast, and natural
- Light shake restores flow if clogged — no tools or disassembly required
- Durable cap design includes leak-proof flip cover and carry loop
- Switch to cap-only mode when filter isn’t needed
Whether you’re heading out for a day hike, camping off-grid, or traveling light, it’s one of the top rated water filters for travel. For hassle-free hydration, just scoop and sip — no waiting, no chemicals, no bulky gear.
Randy Barry (verified owner) –
Worked perfectly on my Appalachian hike. Fit my Hydro Flask and filtered lake water fast. Great buy!
Regina Martin (verified owner) –
Finally found a bottle filter that doesn’t slow me down. Flow rate feels just like drinking normally.
Randy Stephens (verified owner) –
Saw great reviews of bottle water filters and chose this one — glad I did. It’s compact, tough, and performs like a pro.