DayCap™ In-Bottle Filter
- Easy-to-Use: The drink experience is practically the same as without the filter thanks to the high-speed filter and the flow-optimized spout.
- Proven Filtration: Hollow fiber filtration media is the same technology as our most popular and field-proven filters, with a flow rate up to 1 liter per minute.
- Safe & Effective: Each filter is individually tested to ensure it meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa.*
- Easy Cleaning: Simply shake to clean with it attached to your bottle to break up particulates and restore flow rates.
- Optimized Design: Filter detaches with an easy half turn for cap-only mode while the semi-flexible carry loop is a sturdy attachment point.
- Premium Materials: TPE mold construction is durable, grips well and complements the quality of your bottle.
Comes with DayCap cap and removeable filter cartridge.
*Includes Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
Tea-colored water typically has a high concentration of decaying vegetation adjacent to, or in, a water source, resulting in a variety of organic acids. These acids, and the accompanying water conditions, are very hard on ALL types of water filters. Get your water elsewhere if you can.
However, if no alternatives exist, we recommend backflushing/cleaning your filter more frequently, even after each use. This will help minimize the clogging of the filter.
A DayCap that has been recently used to filter water will have wet hollow fibers, which can freeze and break the fibers. Broken fibers no longer filter water. It is important to prevent hollow fiber filters from freezing.
If you are expecting freezing or near-freezing temperatures, we recommend carrying or stowing the filter cartridge near your body (e.g., in a chest pocket) and bringing the filter into your sleeping bag overnight. (Place it in a plastic bag to prevent it from leaking).
If you think your filter may have been damaged by freezing, perform a filter integrity check before the next use to determine if it is still safely filtering water (see instructions for your filter product). Consider carrying a replacement filter as a backup in case of a failed integrity test.
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Orders Shipped in 1-2 Days
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No Hassle Returns
We accept returns within 30 days of purchase. All returned items must be in new condition. Please be sure no dirt, grass or pet hair is on the item you are returning. Learn More
We Believe in What We Build
At Platypus, we take pride in engineering the highest-quality outdoor gear available, and we stand behind everything we make. Platypus gear is built to be exceptionally durable. And we back it up with the best service in the industry, all to keep your gear performing for you—and out of landfills. Visit our Platypus Warranty page for more info.