Features:

• Protects against bacteria, parasites, microplastics, lead and other heavy metals, chemicals including chlorine, organic chemical matter like pesticides, and herbicides, dirt, sand, and cloudiness while removing odors to improve taste
• Independently lab tested, durable and BPA-free
• Every fill avoids single use plastic bottled water!

Details:

LifeStraw Flex is a 2-stage water filter that exceeds the NSF 53 drinking water standard for reduction of lead also reduces chemicals and removes bacteria and parasites. It can be used in 5 different ways: as a personal straw, with the, included soft-touch bottle, or attached toa plastic water bottle, hydration bladder or as a gravity filter.

Stage 1: Hollow fibre membrane filter removes 99.999999% of bacteria (E.coli, etc.) and 99.999% of protozoa (Giardia, Cryptosporidium, etc.). Lifetime: 2,000 liters (500 gallons)

Stage 2: Replaceable activated carbon fibre capsule reduces lead and chlorine, improves taste, reduces bad odour and organic chemical matters. Lifetime: 100 litres (25 gallons)

Benefits:

• Protects against 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), 99.999% of microplastics, heavy metals including lead, chlorine, organic chemical matter, dirt, sand, and cloudiness; improves taste
• Versatile water filter system, can be used 5 ways: as a personal straw filter, with the included squeeze bottle, with a gravity bag, as an in-line filter with most hydration packs or attached to most disposable water bottles
• Compact and ultralight filter and 22 oz (0.7 L) squeeze bottle weighs 3.15 oz (89 g) and hasan easy-to-fill wide opening 
• Long-lasting membrane microfilter lasts up to 500 gallons (2,000 L); replaceable activated carbon + ion exchange filter lasts up to 26 gallons (100 L)
• This product gives back: one purchase, one child, one year of safe water

Specifications:

• Membrane microfilter protects against 99.9999% of bacteria, 99.999% of parasites, 99.999% of microplastics, dirt, sand, and cloudiness
• Activated carbon + ion exchange filter protects against lead, chlorine and odor for improved taste 
• Meets NSF 42 standard for chlorine reduction
• Meets NSF 53 standard for reduction of lead
• Meets US EPA & NSF P231 standards for the removal of bacteria and parasites
• Membrane microfilter lasts up to 500 gal | 2,000 L, pore size: 0.2 micron
• Activated carbon + ion exchange filter lasts up to 26 gal | 100 L
• Filter Size: 6.4 x 1.5 in | 22.9 x 2.5 cm
• Hose Length: 27.5 in | 70 cm
• Gravity Bag Volume: 1 gal | 3.7 L
• Gravity Bag Size: 18.7 x 10.6 in | 47.5 x 27 cm
• Weight: 6.9 oz | 196 g 
• Flow Rate: 0.125 gal/min| 0.5 L/min
• BPA-free materials
• Replaceable filters & parts
• Includes: LifeStraw Flex filter, 1-gallon gravity bag, quick-connect hose, and backwashing syringe