HydraPak 28mm Inline Water Filter

One filter, a whole bunch of ways to use it.

The HydraPak 28mm Inline Filter is a lightweight, versatile backcountry water filter that works with HydraPak reservoirs and soft bottles as well as many standard 28mm-thread bottles, including 1L Smartwater bottles.

Thread it directly onto a compatible bottle or HydraPak Stow and drink or squeeze-filter on the go. Connect it to a Plug-N-Play reservoir for inline filtration, or build a gravity system using compatible HydraPak water storage. At only 1.6 ounces, it's an easy addition to a backpacking, hiking, hunting, or emergency kit.

The hollow-fiber filter provides a flow rate of more than 1 liter per minute and is rated to treat approximately 1,500 liters of water with proper use and maintenance.

Why We Like It

The versatility is the big win here. You don't have to commit to one specific filtration setup. Use it with a lightweight bottle for a day hike, connect it to your hydration reservoir, or incorporate it into a larger gravity-fed camp setup. It's also small and light enough to carry as a backup filter.

Filtration

The hollow-fiber membrane effectively removes common waterborne bacteria and parasitic cysts, including E. coli, Giardia and Cryptosporidium.

• Filters approximately 1,500 liters

• Flow rate greater than 1 liter per minute

• Hollow-fiber filtration

• Does not require batteries or chemicals

Compatible Setups

• 28mm-thread bottles and soft flasks

• HydraPak Stow 500ml and 1L

• 1L Smartwater bottles

• HydraPak reservoirs with Plug-N-Play connections

• Compatible HydraPak gravity-filtration setups

Details

• Lightweight and compact

• 28mm threaded connection

• Plug-N-Play compatible

• Can be used for drinking directly, squeeze filtering, inline filtration or gravity filtration

• Included cap adapter

• Included backflush adapter

• Backflushable to help restore flow rate

Specs

• Weight: 47 g / 1.6 oz

• Dimensions: 5.1" x 1.3" / 129 x 34 mm

• Materials: PP/POM, EPDM, silicone and hollow fiber