HydroBlu: portable water filters for hiking, camping and emergencies

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HydroBlu is a US brand that makes portable water filters for the outdoors and for emergency kits. Its range covers straw filters you drink through, small inline filters that screw onto a bottle, gravity bag systems for camp and a large pressurized jerry can for families or base camps. Most of the filters use a hollow fiber membrane, and some add an activated carbon stage for taste and odor.

It suits backpackers who want to keep pack weight down, campers who'd rather not carry all their water in, and anyone building a home emergency kit. Prices are clear on each product page, and US orders of $75 or more ship free.

What's worth a look

Here are six filters and kits from the current range, all showing as in stock.

Versa Flow Light-Weight Water Filter | Camping, Backpacking & Emergencies2 oz inline filter for 28 mm bottles$22.95View at HydroBlu Versa Flow Light-Weight Water Filter PackageFilter plus two canteens, hose and adaptor$25.95View at HydroBlu Go Flow Water Gravity Bag with Versa Flow Water Filter10-liter gravity bag system for camp$48.95View at HydroBlu Sidekick 3-Stage Straw Water Filter | hiking & backpackingLightweight 3-stage straw filter$17.95View at HydroBlu Activated Carbon Filter for Versa FlowAdd-on stage for taste and odor$7.95View at HydroBlu Pressurized Jerry Can Water Filter15-liter filter can for families and groups$179.95View at HydroBlu

The Versa Flow is the core of the range. It weighs about 2 oz, is 5.7 inches long, fits bottles with 28 mm threading and is rated for up to 100,000 gallons with regular backflushing. HydroBlu says it can filter up to a gallon in about five minutes. The Versa Flow Light-Weight Water Filter Package adds two 64 oz collapsible canteens, a bucket adaptor, a silicone hose and a hose clamp for only a few dollars more than the filter on its own.

For camp, the Go Flow gravity bag kit pairs a 10-liter food-grade TPU bag with the Versa Flow, a 35-inch hose and a shoulder strap. You hang it up and let gravity do the work while you set up the tent. If you want better-tasting water, the Activated Carbon Filter for Versa Flow is rated for up to 150 gallons and is designed to reduce chemicals, odors and discoloration.

The Sidekick 3-Stage Straw Water Filter is the lightest option, combining a cotton pre-filter, activated carbon and a 0.1-micron hollow fiber stage in a straw about 6 inches long. At the other end of the scale, the Pressurized Jerry Can Water Filter holds 15 liters (4 gallons), has a filter life of up to 10,000 gallons and is a sensible choice for a family emergency supply or group trips.

Current offers

• 10% off with ambassador code HYDROBLU10.
• Free shipping on all US orders of $75 or more, as shown across the site.

How to save more

• Buy the Versa Flow package rather than the filter alone if you need canteens or a bucket adaptor. The package is $25.95 against $22.95 for the filter by itself.
• Combine a carbon filter or a Sidekick straw with a gravity kit to get over the $75 free shipping threshold.
• Backflush your filter as the product pages describe. The long filter-life ratings depend on regular maintenance, so looking after it saves on replacements.

Products, prices and offers checked on the store's own website on 4 Nov 2026. Prices and stock can change.

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