Trying to choose a SteriPEN?

All SteriPEN models are made with powerful, long-lasting UV lamps. Models differ in size, weight, power source, warranty duration, and activation method. This chart provides key information to help you make a purchase decision including links to product videos and detailed product information with device specifications.

SteriPEN Models Comparison Table

Model
MSRP
Price
(USA)
Power Source
Volume of Water Per Set of
Batteries or Per Charge
Weight
Size Including
Lamp Cover
Lamp Life -
Number of
Activations
SteriPEN
Classic 3


SteriPEN Classic 3 - Water purifier powered by alkaline batteries
$69.95Four AA batteries
(alkaline, lithium,
or NiMH rechargeable)
Not included
with purchase
150 liters with lithium batteries

100 liters with rechargeable batteries

50 liters with alkaline batteries
6.3 oz (178 g)
Includes batteries
7.6 x 1.5 x 1.5 in
(186 x 43 x 43 mm)
8,0003 years
SteriPEN
Ultra


SteriPEN Ultra - Water purifier powered by internal battery
$99.95Internal rechargeable
battery
50 liters on a full charge4.94 oz (140 g)7.3 x 1.6 x 1.3 in
(186 x 42 x 33 mm)
8,0003 years
SteriPEN
Freedom


SteriPEN Freedon - The choice of frequent travelers

$99.95Internal rechargeable
battery
20 liters on a full charge
2.6 oz (74 g)5.1 x 1.4 x 0.8 in
(128 x 35 x 22 mm)
8,0003 years
SteriPEN
Adventurer Opti


SteriPEN Adventurer Opti - The adventurers choice
$89.95Two CR123 (included with purchase) or RCR123
(rechargeable)
50 liters with disposable batteries

30 liters with rechargeable batteries
3.8 oz (108 g)
Includes batteries
6.1 x 1.5 x 1.0 in
(155 x 40 x 24 mm)
8,0003 years