From the manufacturer

Ultralight and fast water filtration system for clean water on the go. Filters microorganisms, improves taste and reduces odors. Easy to use, ultralight and portable.

Katadyn's BeFree Activated Carbon 1L is your ideal all-purpose water filter, providing clean water with minimal effort while improving taste. This 2-stage filter includes a water filter and activated carbon, providing fresh, great-tasting water wherever your adventure takes you. Your water will taste so good, you might even want to use it at home to remove the chlorinated taste from your tap water. With a fast flow rate of up to 2 liters per minute, you won't be wasting time filtering water at camp. Easy to use, ultralight, and ultra-portable.

Features

• Removable Activated Carbon pad to keep water tasting fresh
• Integrated rugged handle, making it easy to take out of your pack or carry by hand
• Robust flip cap 
• BeFree EZ-Clean Membrane™ that allows for quick and effortless cleaning by simply shaking or swishing the filter to remove debris and maintain optimal performance 

Specifications

Volume: 1L

Weight: 2.7oz | 76g

Dimensions: 10.75" x 4.2" x 3.1" | 27.3 x 11.4 x 7.8cm

Thread size: 42mm

Pore Size: 0.1 micron

Removes: Bad taste, sediments, cysts, protozoa, bacteria

Flow Rate: up to 2L/min

Filter Life:

• Hollow Fiber Filter: tested to 1,000 liters; individual results will depend on water quality
• Activated Carbon: up to 200 liters, depending on water quality 

Materials:

• Filter: Hollow fiber, activated carbon
• Reservoir: Hydrapak® SoftFlaskTM made of TPU (thermoplastic polyurethane), 100% PVC, and BPA free

Made in Switzerland