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Thanks for choosing the SteriPEN Aqua 

and congratulations on your purchase!
Aqua is built to be safe, simple and straightforward. If 

after reading this guide, you have any questions or 

your SteriPEN doesn’t operate as described in this 

manual, please contact us. We love hearing from you! 

We are here to troubleshoot and make sure you have a 

working device. Call 888-826-6234 (207-374-4506) or 

email 

[email protected]

.

Also, be sure to visit us online and register your Aqua 

for all the latest news and special deals: 

www.steripen.com/register

Thanks again and happy travels!
P.S. Don’t forget to recycle the packaging!

While Aqua’s battery compartment is designed 

to be highly water-resistant, it is not waterproof. 

Avoid submerging Aqua’s battery end in water.
Aqua’s battery performance may be adversely affected 

by cold weather. In temperatures below 32ºF/0ºC carry 

the unit close to your body or warm up batteries before 

use. If batteries are too cold, Aqua’s LED indicator may 

give low battery signal. Warm up batteries and treat 

again.
Make sure to wipe dry after each use.
When not in use, Aqua should be kept in a safe 

place that is clean and dry. It should not be exposed 

to temperatures above 120°F/49°C or below -4°F/-20°C. 

Also, when storing for long periods of time, remove 

batteries to keep them from inadvertantly draining.
To clean Aqua, wash with a soft cloth and a mild 

soap solution. Rinse soap from device and dry with 

a clean, soft cloth. 
If Aqua’s bulb is cracked, chipped or damaged, 

don’t use it. Return it to the store or contact SteriPEN 

for repair. Email us at 

[email protected] 

or call 

888-826-6234 (207-374-4506). Do not try to fix it 

yourself. 

Aqu

a

Aqua runs on disposable 

alkaline 

batteries, 

lithium 

batteries, or 

rechargeable nickel metal hydride 

(NiMH) AA batteries with a 2300mAh capacity. 
For best results, always use quality, name brand 

batteries, like Energizer® or Sanyo Eneloop®.

A flashing or steady red indicator means treatment was 
unsuccessful. See “Aqua LED Indicator Guide.”
Be sure to wipe bottle threads dry before drinking.

1  

Battery cap

2  

Indicator LEDs

3  

Activation button

4  

Water sensor pins

5  

UV lamp

6  

Lamp cover

Specifications

Treatment size: ½ or 1 liter
Treatment time: 48 or 90 seconds
Lamp life: 3,000 activations
Number of liter treatments per set of 

batteries: (numbers are approximate)

     lithium - 150

     alkaline - 50

     rechargeable - 100
Minimum bottle opening: 22mm
Weight: 83g
Weight with batteries: Lithium: 141g; 

Alkaline: 178g; Rechargeable: 191g
Length with lamp cover: 186mm
Maximum diameter: 43mm

THANK YOU 

FOR PURCHASING 

THE BEST-SELLING 

PORTABLE UV PURIFIER

Aqua’s ANATOMY

1  Remove lamp cover.
Twist cover gently and pull away 
from lamp. Take care to keep the 
water sensor pins dry prior to  
activating.

EASY TO USE

BATTERY GUIDE

2  Press activation button.
Once for half-liter treatment, twice 
for liter treatment. LED(s) will flash 
green to indicate unit is ready.

3  Submerge in clear water and stir.
When water sensor pins detect water, 
lamp will illuminate. When treatment 
is complete and successful, lamp will 
turn off and green indicator(s) will flash.

Remove battery cap by rotating 

counterclockwise so that cap 

arrow points to open lock icon (  ).

Install AA batteries with polarities 

as shown in battery compartment. 

For best performance, replace all 

batteries at the same time.

Replace battery cap by aligning 

cap with open lock icon. Then, 

rotate cap clockwise until arrow 

points to closed lock icon (  ).

CARE & CLEANING

Aqua LED INDICATOR GUIDE

The Aqua’s three LED indicator lights let you 

know the status of your SteriPEN and the water 

purification process. Green blinking LED(s) 

indicates succesfull water treatment. The red 

LED indicates unsuccessful water treatement, 

low battery level, battery replacement needed, 

or UV lamp replacement needed.

LED RHYTHMS

Successful water 
treatment 

SUCCE

SS

FU

L

U

N

SUCCE

SS

FU

L

Successful water 
treatment, 
batteries low
Successful water 
treatment, UV lamp good 
for less than 100 uses

Not submerged 
in water in time

Replace or 
recharge batteries

Water not 
detected

Replace UV lamp, 
UV lamp damaged

(One liter = two green LEDs, half liter = one green LED.) 

If LED indicators show normal signals, but the lamp does not illuminate, 

do not consume. Contact SteriPEN support.

www.steripen.com

facebook.com/steripen

@steripen

AQ.UG.140909

Hydro-Photon, Inc.  
PO Box 675
262 Ellsworth Road
Blue Hill, Maine 04614 USA
Toll Free USA: 1-888-SteriPEN
(+1) 207-374-5800
[email protected]
www.steripen.com

© 2014 Hydro-Photon, Inc.

Aqu

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