SteriPEN Classic 3 w/ Prefilter (Fall 2021)


Out of stock


The SteriPEN Classic 3 with 40-micron pre-filter is the most versatile model in their award-winning Classic line. Whether your source is a clear running brook or a hotel tap, the Classic destroys viruses, bacteria and protozoa, including Giardia and Cryptosporidium, in seconds. The included Pre-Filter will help get out most of the sediment floating in your water source, and screws onto a Nalgene or other widemouth bottle perfectly. The Classic 3 offers enhanced ergonomics and battery life as well as improved water resistance. An 8,000 treatment lamp delivers a lifetime of purification. Use four AA alkaline batteries to purify 50 liters of water or four lithium batteries to purify 150 liters. Includes a neoprene storage pouch. Batteries not included.

SteriPEN is the winner of numerous awards, including TIME Magazine's Top 100 All-Time Greatest Gadgets.

WARNING for California customers: This product can expose you to chemical(s) which are known to the State of California to cause cancer and reproductive harm. For more information visit:


Brand Name:
Micron Rating:
Prefilter: 40 x 40
Treatment Type:
UV Light Purifier
Without batteries — 2.9oz (83g)
Alkaline — 6.3oz (178g)
NiMH (rechargeable) — 6.7oz (191g)
Lithium — 5oz (141g)
Protects Against:
Protozoa & Bacteria & Viruses
Mfg Sku/Part Number:
Other Features:
• Purifies a 32 oz. bottle of water in under 2 minutes!
• Destroys viruses, bacteria and protozoa'including Giardia and Cryptosporidium'in seconds.
• No Chemicals needed -- No Pumping needed
• Ergonomic design with an updated easy-to-remove twist-off cap.
• The first SteriPEN to work effectively with alkaline batteries. Can be powered by alkaline, lithium, or NiMH batteries
• Enhanced LEDs indicate treatment volume and status of batteries and lamp
• Watertight: no more worries about dropping your Classic 3 in a bottle or stream
• So easy: just activate, place in water, and stir. LED indicators flash to let you know when water is safe to drink
• Package includes: SteriPEN Classic 3, carrying case, Pre-Filter, and user's guide
• Batteries not included
• Three year limited warranty

-- Lamp Life: 8,000 1L treatments
Approx. 1L treatments per set of batteries:
-- alkaline ' 50 liters
-- NiMH (rechargeable) ' 100 liters
-- lithium ' 150 liters

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