What contaminants do the LifeStraw Max Replacement Filters remove?

The Ultrafilter set removes viruses, bacteria, parasites (including Giardia and Cryptosporidium), and microplastics. The Carbon filter reduces lead, chlorine, pesticides, and improves taste.

What is the difference between the Ultrafilter and Carbon filter?

The Ultrafilter (0.02 micron) removes viruses and a broad spectrum of biological contaminants. The Carbon filter focuses on chemical contaminants like lead and chlorine, and enhances taste.

How long do the filters last?

The Ultrafilter set lasts up to 26,500 gallons (100,000 L). The Carbon filter lasts up to 4,000 gallons (15,000 L).

Do these filters fit standard 10"x2.5" filter housings?

No, LifeStraw Max filters are designed as a standalone system for high-flow filtration and are not compatible with standard household or industrial filter housings.

How do I maintain optimal flow and performance?

Regular backwashing flushes out contaminants and maintains flow rate. Backwash daily, after pre-filter cleaning, after filter replacement, or after long periods of non-use.

How do LifeStraw membrane ultrafilters work?

LifeStraw's membrane ultrafilter pores are 0.02 micron—10 times smaller than microfilter pores. When dirty water enters the ultrafilter, the microscopic pores block viruses, bacteria, parasites, microplastics, dirt, and other turbidity. Clean water passes through the pores making the water microbiologically safe to drink. LifeStraw Membrane Ultrafilters are capable of removing 99.999% of viruses, 99.999999% of bacteria, 99.999% of parasites, and 99.999% of microplastics.

What is LifeStraw's Give Back program?

For every LifeStraw product sold, a child in need receives access to safe water for an entire year through LifeStraw's Give Back program.

Are these filters independently lab tested?

Yes, every LifeStraw Max Replacement Filter is independently lab tested to WHO, US EPA, NSF, and WQA protocols for transparent, science-backed performance.

LifeStraw Max Replacement Filters set: two blue membrane ultrafilter cartridges and a black activated carbon filter

Filters diagram: membrane ultrafilter removes viruses, bacteria, parasites and microplastics; activated carbon filter reduces lead, chlorine and chemicals

Black activated carbon replacement filter cartridge for the LifeStraw Max water purifier, shown on its side

LifeStraw Max Replacement Filters

Name: LifeStraw Max Replacement Filters
Brand: LifeStraw - Online store
SKU: LSMUF2PKWW
Price: 124.95 USD
Availability: InStock

$124.95

The Ultrafilter set removes viruses, bacteria, parasites and microplastics. Filter set (combined) lasts up to 26,500 gallons | 100,000 L The Carbon filter reduces lead and chlorine. Carbon filter lasts up to 4,000 gallons |...

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Type: Ultrafilter Set

Ultrafilter Set Carbon Filter

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This product filters

Virus
Cryptosporidium
E. Coli
Microplastics
Giardia
Pesticides
Lead

1 Purchase = 1 Year of Clean Water for 1 Child.

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The Ultrafilter set removes viruses, bacteria, parasites and microplastics. Filter set (combined) lasts up to 26,500 gallons | 100,000 L
The Carbon filter reduces lead and chlorine. Carbon filter lasts up to 4,000 gallons | 15,000 L
Easy to replace and long lasting

The Ultrafilter set removes viruses, bacteria, parasites and microplastics. Filter set (combined) lasts up to 26,500 gallons | 100,000 L
The Carbon filter reduces lead and chlorine. Carbon filter lasts up to 4,000 gallons | 15,000 L
Easy to replace and long lasting

Free shipping on orders $75+ (US lower 48 only)
45-day returns on unused items in original condition (US lower 48).
Free return shipping for eligible returns (US lower 48).
Not returnable: discounted/promo or bundle items, final-sale or limited editions, and products $300+ (defects covered by warranty).
Refunds issued 7–10 business days after inspection to your original payment method.
Bought elsewhere? Returns must go back to that retailer.

Original shipping, duties, and re-shipping for undeliverable packages aren’t refundable.

Have a Question? Checkout our FAQs

LifeStraw Max Replacement Filters

Ultrafilter Set Edit

Independent Lab tested

LifeStraw products have a history of use in some of the harshest conditions around the world, from refugee camps to natural disasters to extreme back-country, our products have to work because lives depend on them. Our testing and transparency is unparalleled and we use the most trusted performance criteria based on protocols established by the World Health Organization, the US EPA, NSF International and the Water Quality Association.

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What gets filtered out

LifeStraw

OTHERS

Lead

Improves Taste

Virus

Bacteria & Parasites

Microplastics

LifeStraw

Lead

Improves Taste

Virus

Bacteria & Parasites

Microplastics

OTHERS

Lead

Improves Taste

Virus

Bacteria & Parasites

Microplastics

OUR TECHNOLOGY

When should I run the backwash procedure?

Regular backwashing flushes out contaminants from filter cartridges and helps to maintain flow rate

When to backwash:

Once a day or when you see a reduction in flow rate
After pre-filter cleaning
After any cartridge or filter replacement
After long periods of non-use

How do LifeStraw membrane ultrafilters (purifers) work?

The difference between membrane microfilters and membrane ultrafilters is the pore size.

For example, LifeStraw's membrane ultrafilter pores are 0.02 micron —10 times smaller than the pores of the membrane microfilter. Both technologies work via the same mechanism, but ultrafilters also block viruses due to the smaller pore size. When dirty water enters the ultrafilter, the microscopic pores block viruses, bacteria, parasites, microplastics, dirt, and other turbidity forms. Clean water passes through the pores in the membranes making the water microbiologically safe to drink. Because of the smaller pore size, ultrafilters often have a slower flow rate or require more pressure to purify water than microfilters. LifeStraw Membrane Ultrafilters are capable of removing 99.999% (log 5) of viruses (including Rotavirus), 99.999999% (log 8) of bacteria (including E. coli and Salmonella), 99.999% (log 5) of parasites (Giardia and Cryptosporidium), and 99.999% (log 5) of microplastics. We classify our products that use membrane ultrafiltration technology as purifiers because they remove virus.

What others are saying

Overall rating: 4.75 / 5 from 4 reviews.

AI Generated Review Summary

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Reviews

Great idea for water purification

"I like the filter replacement units - when we camp, this makes water super simple and easy to drink. Your company if filling a gap that allows the "camper" in all of us the opportunity to carry less and waste less! NO more plastic bottles!!"

— Michael R. (5/5)

they are for emergencies

"haven't used, but I wish they sold the rubber replacement tubing also"

— Kim D. (4/5)

"Exact product as described"

— Erin (5/5)

I am glad I stocked

"I am glad I stocked up"

— Rhonda l. (5/5)

Q&A

Will these fit in a standard 10"x2.5" filter casing? With or without adapter device?: No, the LifeStraw Max Filter will not fit into a standard 10" x 2.5" filter casing, even with an adapter. The Max filter is designed as a standalone system for high-flow filtration and is not compatible with standard household or industrial filter housings.
What are the dimensions and weight on the carbon filters=: Max Carbon Filter Dimensions: Weight: 362 grams, 12.77 oz. Height: 277 mm, 10.9" Length: 60 mm, 2.4" Width: 60mm, 2.4"
Are these filters 0.2 microns or 0.02 microns. Can you please explain the difference? Are these filters capable of eliminating viruses? Or is extra water treatment needed using .2 microns filters?: The Max Ultrafilter pore size is 0.02 microns. At this size, the filters will block not only bacteria, parasites, cysts, microplastics, and turbidity in the water, they will also block 99.999% of viruses. In choosing the right filter, you should make sure you understand the condition of the water you would be drawing from. For areas where viral contamination is not a concern, the 0.2 micron pores of our microfilter will protect you well, but at times where viruses are present, you would be best served by the Ultrafilter's capabilities. You do not need to use water treatment for the Max or our other purifying filters.

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LifeStraw Max Replacement Filters

This product filters

1 Purchase = 1 Year of Clean Water for 1 Child.

LifeStraw Max Replacement Filters

Independent Lab tested

LifeStraw

OTHERS

LifeStraw

OTHERS

When should I run the backwash procedure?

How do LifeStraw membrane ultrafilters (purifers) work?

What others are saying

AI Generated Review Summary

Summary topics

Review highlights

Reviews

Great idea for water purification

they are for emergencies

I am glad I stocked

Q&A

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