Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11am Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
Destroy over 99.9% of viruses, bacteria, and protozoan cysts in water using ultraviolet light with the Classic 3 UV Water Purifier from SteriPEN. This water treatment device comes complete with a 40 x 40-micron screen Pre-Filter, and does not utilize any harmful chemicals. The UV sterilization process won't change the taste, odor or color of the water. The unit is operated on four user supplied AA batteries, which are easily replaced when needed. It is suitable for hikes, travel, or any situation when pure, drinkable water is not available. The purifier comes with SteriPEN's Premium Lamp Life Pledge; so when you reach the lamp's lifespan of 8,000 treatments, SteriPEN will replace it with a new unit.
The Pre-Filter fits perfectly on wide-mouth, one-liter water bottles and removes particulates that can get in the way of UV light in water. It is designed to be stored directly on the bottle, and the SteriPEN Classic 3 fits perfectly in the filter. Just insert Classic 3 in the filter opening, turn the bottle upside down, and gently rock to circulate light throughout bottle.
Eliminates over 99.9% of bacteria, viruses, and protozoa
UV lamp purifies up to 8,000 liters of water
40 × 40-micron Pre-Filter
Easy-to-remove twist-off cap
Powered by user supplied AA batteries
Watertight design survives accidental immersions
In the Box
SteriPEN Classic 3 UV Water Purifier (AA Batteries, Filter)
Protective Neoprene Carrying Case
Limited 3-Year Warranty
Table of Contents
Bacteria, viruses, and protozoa
150 L / 5072 fl oz water treated with set of lithium batteries
50 L / 1690 fl oz water treated with set of alkaline batteries
100 L / 3381 fl oz water treated with set of rechargeable batteries
0.5 L / 16.9 fl oz treated in 48 seconds