Adventurer Opti Water Purifier

More awards
Tested by Bergzeit
cleaning method
UV light
Specific activity
more info
UV sanitizer
15.50 cm
2.20 cm
3.30 cm
Weight (piece)


<p>The SteriPEN Adventurer Opti water purifier is a practical essential for purifying drinking water when you're on a backpacking trip where a light load is necessary.&nbsp; With its 108 g and compact dimensions, it fits into any backpack and is ready for immediate use when needed.&nbsp;</p><p>Using UV-C light, the Adventurer Opti Water Purifier removes 99.9% of protozoa (including Giardia and Cryptosporidia), bacteria and viruses.</p><p>Operation is child's play: by stirring, 0.5 l of drinking water is treated in 48 seconds and 1 l in 90 seconds. Ideally suited are wide-neck bottles, for example from Nalgene®. The end of the treatment is indicated by a flashing LED display. Super practical: The LED can also be used as an emergency lamp with continuous light.&nbsp;</p><p>The Adventurer Opti Water Purifier is only suitable for use with clear water, as turbid water containing sediment impairs the effectiveness of the UV light.</p><p>The SteriPEN Adventurer Opti Water Purifier is powered by two CR123 button cells. One battery set is sufficient for about 50 applications. The UV lamp is designed to last for approximately 8,000 applications.</p>
More SteriPEN from SteriPEN

You can return unused goods to Bergzeit within 100 days. Please proceed as follows (your statutory rights are not affected by this):

1. Register your returns using our returns portal.

2. Send the items with sufficient postage* to the following address:

Bergzeit GmbH, c/o FineCom Logistics GmbH
Zur Painten 777
94529 Aicha vorm Wald, Germany 

*For unstamped returns, we are obliged to charge you the increased shipping fees of the courier (€18).

3. After receipt of the return shipment, the original purchase amount will be refunded within 14 days. You will be kept informed about the status of your return via e-mail.

PLEASE NOTE: If you have received an incorrect item, please contact our customer service team after registering your return, and you will be provided with a free returns label.
We do not offer direct exchanges. If you would like the item in a different color or size, you must place a new order in our online shop. 

Delivery Times

The estimated delivery time is indicated separately for each item. In addition, an expected date of dispatch is stated with the order. Express delivery is currently not possible.

Shipping costs per destination and order value (up to 31.5 kg)

Germany Austria Italy Netherlands Belgium Luxembourg Denmark Other  Countries* Other Non EU Countries**
Up to €49 €2,95  €3,95  €5,95  €6,95  €6,95  €6,95  €6,95  €9,95  €9,95
€50-99 €0,00  €3,95 €5,95 €6,95  €6,95 €6,95 €6,95 €9,95  €9,95
€100-249 €0,00  €0,00 €0,00 €0,00 €0,00 €0,00 €0,00 €9,95 €9,95
From €250 €0,00 €0,00 €0,00 €0,00 €0,00 €0,00 €0,00 €0,00 €0,00


Germany Austria Italy Netherlands Belgium Luxembourg Denmark Other EU Countries * Other Non EU Countries **
Bulky Goods 10,00 € 10,00 € 10,00 € 10,00€ 10,00 € 10,00 € 10,00 € 10,00 € 10.00€
Skis 0,00 € 0,00 € 0,00 € 0,00 € 0,00 € 0,00 € 0,00 € 0,00 € 15,00€

*  Bulgaria, Estonia, Finland, France (mainland only), Greece (mainland only), Ireland, Croatia, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Sweden, Slovenia, Slovakia, Spain (mainland only), Czech Republic, Hungary, Cyprus

** Andorra, Iceland, Monaco, Montenegro, Norway (except Spitzbergen), Serbia, Turkey

What are Bulky Goods?
Bulky goods consists of any items weighing more than 31.5 kg or exceeding a combined packing measurement of 360cm (Length +  2xWidth + 2xHeight)
This includes MOST products from the following categories:

  • Skis
  • Crashpads
  • Barbeques
  • Toboggans
You can find the weight and packing measurements of an item on the product detail page.

Additional Information
For delivery to Switzerland and Liechtenstein, please visit For delivery to the UK, please visit