Cooler months are a good time to clean and refresh the bottles, reservoirs and filters you use most. Here are five picks from our gear guides, with details from the makers.

HydraPak HydraSleeve Reservoir 3L

HydraPak's HydraSleeve is a 3-liter hydration reservoir for packs. HydraPak HydraSleeve Reservoir 3L (paid link).

HydraPak HydraSleeve 3L reservoir — *Image: HydraPak.*

HydraPak Bottle Bright Cleaning Tablets

Bottle Bright comes in a 12-tablet pack. HydraPak's directions call for 1 tablet to 1 liter of water, and the brand says the tablets are made to keep containers clean. HydraPak Bottle Bright Cleaning Tablets (paid link).

HydraPak Bottle Bright 12-pack — *Image: HydraPak.*

Klean Kanteen Sale Specials

Klean Kanteen's Sale Specials collection of closeouts and overstocks is currently 20-40% off while supplies last. The brand has also announced Free Personalization November 9 to 15, and a 25% off sitewide holiday sale November 19 to 30 with code KLEAN26 (bundles, sale specials and select items excluded). Klean Kanteen Sale Specials (paid link).

WaterH Boost Smart Water Bottle 32oz

The WaterH Boost is a 32-ounce smart water bottle. See the WaterH Boost listing in our accessories guide: https://hydrologyuniversity.com/reviews/accessories

Purewell K Series Ceramic Filters

Purewell sells K Series ceramic replacement filters. See the Purewell listing in our gravity and carbon filter guide: https://hydrologyuniversity.com/reviews/gravity-carbon

Compare these and more in our accessories guide: https://hydrologyuniversity.com/reviews/accessories

For water at home, see WaterVO: https://watervo.com

Disclosure: Hydrology University may earn a commission on purchases made through links marked (paid link) on this page, at no extra cost to you.

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