Replacement Filter and O-ring

3-stage physical versatile filter materials:

– Medical hollow fiber UF membrane: removes the 99.9999% aquatic bacteria (including E. Coli) 99.9% protozoan cysts (including Giardia)

– Coconut activated carbon: removes heavy metal, chlorine and improve water taste

– Medical PP cotton: removes sand, mud as a pre–filter

Weight: 2.75oz

Packaging Size: 3.25″ x 3.25″ x 2.25″ (L x W x H)