SteriPEN Pre-Filter

$12.95

The SteriPEN Pre-Filter removes debris from water so the UV light can effectively destroy the microorganisms in it. Forms water tight seal with SteriPEN Classic 3SteriPEN Ultra or SteriPEN Aqua.

Product Specifications:

Size: 1.85 in. (47mm) x 2.6 in. (67mm)
Weight: 1.5 oz (43g)
40 micron durable nylon screen
Reversible cartridge for compact convenient storage
Dual water seals to prevent contamination of drinking surface
Used with Nalgene® and other 32 ounce wide-mouth water bottles

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Description

SteriPEN Pre-Filter

The SteriPEN Pre-Filter filters fits on Nalgene® and other 32 ounce wide-mouth water bottles and filters out particulates and debris. When in use, pour water through the durable 40×40 micron screen filter cartridge to fill the bottle. Then you’re ready to purify the water with a SteriPEN UV water purifier. Remove the filter cartridge from the Pre-Filter, insert the SteriPEN into the center of the filter, flip the bottle, and agitate the water until the SteriPEN indicates the treatment is complete.


SteriPEN Pre-Filter is rated 4.0 out of 5 by 2.
Rated 5 out of 5 by from ALWAYS Pre-Filter First! Off-Road Safety Academy If like me, you need to source dirty water containing lots of particulate matter ("Crud"), it is a necessity to pre-filter the water prior to applying any type of water disinfection treatment. Nobody likes "crunchy" Crud in his or her naturally sourced drinking water. Yuck! With the SteriPEN Pre-Filter, your removal of Crud is EASY. With this ingenious device, you can easily source water from a tap, lake, pond, or stream. SteriPEN's Pre-Filter also makes it incredibly easy to use your SteriPEN to disable the genetic code of all the bad Critters that can be found in wilderness water sources. Simply remove the small pre-filter from it's bottle cap and place your SteriPEN down into the water. Many models of SteriPENs will seal against the bottle top's opening. This allows you to turn the bottle upside down and shake it during UV treatment. There you have it… No Crud and complete disinfection. With SteriPEN's Pre-Filter and use of any model SteriPEN, you have a genuine water disinfection "system" that is small, convenient, and trust worthy. Review by Bob Wohlers, Owner of Off-Road Safety Academy, at DiscoverOffRoading.com.
Date published: 2015-08-01
Rated 3 out of 5 by from Leaks We use these on our annual kayaking trips and although they do a good job filtering your water it leaks back out of the filter when you go to take a swig out of it so water pours down your chin or top. A bit annoying.
Date published: 2016-08-15
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Does this filter fit a Hydrapak Stash Collapsible Military Grade water bottle? thanks

Asked by: muddyox
We have been able to get a hold of a Hydropak Collapsible water bottle and discovered that, although it is very close to the Pre-filter, they will definitely NOT work together. The Fits-all is the way to go. ~ David
Answered by: David in Tech Support
Date published: 2017-03-22

I just purchased steripen and water bottle with pre-filter, however the pre-filter does not screw to the top of the bottle like the diagrams/pics.  It only screws facing down.  Also, I do not see any cleaning component to the pre-filter. How do they work?

Asked by: Felix
As a footnote to my previous answer, please note that at the end of the demonstration video that was linked, one final step was omitted prior to drinking the treated water. He should have wiped dry the threads and rim of the bottle with a clean cloth or paper towel to remove droplets of water that had not been exposed to the Ultra Violet light. ~ David
Answered by: David in Tech Support
Date published: 2016-07-30

Does the pre-filter work to remove contaminants in water such as arsenic, barium, cadmium, lead, and other chemicals and metals that might appear in water sources in the developing world? If not, what do you suggest to remove these before UV filtering?

Asked by: RED24
If you are looking for additional filtration that is more suitable for use while hiking/camping, you may want to look at the MSR Miniworks EX and some of their other models that include chemicals as one of the elements in water that they are effective against. One other, that lists chemicals and heavy metals, is the Aqua Vessel Insulated Filtration Bottle.
Answered by: David in Tech Support
Date published: 2016-07-30

How many uses can I get out of one pre filter?

Asked by: Kait
In theory our Pre-Filter will last for a lifetime of use. You may use a small amount of detergent and hot water to cleanse the filter if it is dirty. Thank you for choosing SteriPEN!
Answered by: SteriPEN Marketing
Date published: 2017-03-22

Why does the pre-filter packaging say "4 Micron Screen" when the product specifications has "40 micron durable nylon screen"?

Asked by: peterb
The SteriPEN Filter Cartridge that is used in the Pre-Filter has a 40 micron screen. Apparently we need to fix a typo on the packaging. Thanks for the heads up!
Answered by: SteriPEN Answers Team
Date published: 2017-03-22

Would you suggest a small brush like a soft toothbrush to clean the pre-filter? If not, what would be the best suggestion?

Asked by: Jeff
A soft toothbrush with soapy water is a good way to gently clean the Pre-Filter Cartridge.
Answered by: SteriPEN Answers Team
Date published: 2016-11-16

what is the best way to clean the pre filter for long term storage?

Asked by: Puppies
We recommend washing your SteriPEN Pre-Filter in soapy water (dish detergent) and drying it thoroughly before storing. The SteriPEN Pre-Filter is top-shelf dishwasher safe. Thanks for asking!
Answered by: SteriPEN Answers Team
Date published: 2017-03-22

I've a new Steripen Classic 3-I find when using the pre-filter there are still lots of white pieces of debris/particles in the newly filtered water. The filter is on right but is loose as there are only 2 sides with grips on. Is this normal?

Asked by: Marisa
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Does this filter fit a Hydrapak Stash Collapsible Military Grade water bottle? thanks

Asked by: muddyox
We have been able to get a hold of a Hydropak Collapsible water bottle and discovered that, although it is very close to the Pre-filter, they will definitely NOT work together. The Fits-all is the way to go. ~ David
Answered by: David in Tech Support
Date published: 2017-03-22

I just purchased steripen and water bottle with pre-filter, however the pre-filter does not screw to the top of the bottle like the diagrams/pics.  It only screws facing down.  Also, I do not see any cleaning component to the pre-filter. How do they work?

Asked by: Felix
As a footnote to my previous answer, please note that at the end of the demonstration video that was linked, one final step was omitted prior to drinking the treated water. He should have wiped dry the threads and rim of the bottle with a clean cloth or paper towel to remove droplets of water that had not been exposed to the Ultra Violet light. ~ David
Answered by: David in Tech Support
Date published: 2016-07-30

Does the pre-filter work to remove contaminants in water such as arsenic, barium, cadmium, lead, and other chemicals and metals that might appear in water sources in the developing world? If not, what do you suggest to remove these before UV filtering?

Asked by: RED24
If you are looking for additional filtration that is more suitable for use while hiking/camping, you may want to look at the MSR Miniworks EX and some of their other models that include chemicals as one of the elements in water that they are effective against. One other, that lists chemicals and heavy metals, is the Aqua Vessel Insulated Filtration Bottle.
Answered by: David in Tech Support
Date published: 2016-07-30

How many uses can I get out of one pre filter?

Asked by: Kait
In theory our Pre-Filter will last for a lifetime of use. You may use a small amount of detergent and hot water to cleanse the filter if it is dirty. Thank you for choosing SteriPEN!
Answered by: SteriPEN Marketing
Date published: 2017-03-22

Why does the pre-filter packaging say "4 Micron Screen" when the product specifications has "40 micron durable nylon screen"?

Asked by: peterb
The SteriPEN Filter Cartridge that is used in the Pre-Filter has a 40 micron screen. Apparently we need to fix a typo on the packaging. Thanks for the heads up!
Answered by: SteriPEN Answers Team
Date published: 2017-03-22

Would you suggest a small brush like a soft toothbrush to clean the pre-filter? If not, what would be the best suggestion?

Asked by: Jeff
A soft toothbrush with soapy water is a good way to gently clean the Pre-Filter Cartridge.
Answered by: SteriPEN Answers Team
Date published: 2016-11-16

what is the best way to clean the pre filter for long term storage?

Asked by: Puppies
We recommend washing your SteriPEN Pre-Filter in soapy water (dish detergent) and drying it thoroughly before storing. The SteriPEN Pre-Filter is top-shelf dishwasher safe. Thanks for asking!
Answered by: SteriPEN Answers Team
Date published: 2017-03-22

I've a new Steripen Classic 3-I find when using the pre-filter there are still lots of white pieces of debris/particles in the newly filtered water. The filter is on right but is loose as there are only 2 sides with grips on. Is this normal?

Asked by: Marisa
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