The Filter Cap lets you enjoy fresh-tasting tap water, wherever you bring your S’well. Simply fill from the tap, secure the cap, and sip for instant filtration.

This leak-free cap features a protective cover and an ergonomic drink-through spout.

One filter spans 3 months or 40 gallons of water, which is equivalent to 300 single-use plastic water bottles!

Independently tested to meet NSF-42 standards.

Filters chlorine and particulates. Improves taste and odor of tap water.

Fits our 9oz and 17oz Original bottles and comes with one filter.

Also available: the Filter Replacement 2-Pack.