Open main menu

SteriPEN Classic 3 UV Water Purifier

rated 3.5 of 5 stars
photo: SteriPEN Classic 3 UV Water Purifier water purifier

Works very well, but is restricted to certain water containers due to size.


  • Lightweight
  • Treats biological contaminants


  • Requires strong batteries
  • Only fits certain bottle sizes

I really love this product. However, it only works with certain bottle sizes. I don't enjoy the requirement of bringing heavier bottles that will fit the pre-filter. On the other hand, with good batteries, it lasts quite long.

It takes about 30 seconds to treat 0.5L, or about a minute for 1 L. This is fine for one person, but it eventually takes quite a while for a large group, with infrequent water sources (lots of water filtering). It requires stirring, so it's not easy like drops or a gravity filter.

I've used this product for 6 months, with dozens of days of use. All in all, it is a great product, as long as you're prepared for its drawbacks.

Source: bought it new

Your Review

Where to Buy

Help support this site by making your next gear purchase through one of the links above. Click a link, buy what you need, and the seller will contribute a portion of the purchase price to support Trailspace's independent gear reviews.

You May Like

The Classic 3 UV Water Purifier replaced the SteriPEN Classic UV Water Purifier.


Price Current Retail: $99.95
Historic Range: $49.93-$99.95
Product Details from SteriPEN »

Recently on Trailspace

├ůsnes Rabb 68 Review

Limmer Boots The Lightweight Review

Alfa Free A/P/S GTX Review

Rottefella Xplore Backcountry Off-Track Review