Grayl Geopress Replacement Purifier Cartridge Dry Packs Shimano R55C4 Carbon Rim Brake

Shimano R55C4 Carbon Rim Brake Pad Insert are the latest Dura-Ace level brake cartridges for your full carbon clincher or tubular rims

-Interior mesh organizer and key clip

which is a lightweight nylon insert that provides bead-to-bead coverage and ensures every area of the tire is defended against slashes and punctures

91% Polyester

Grayl Geopress Replacement Purifier Cartridge Dry Packs Shimano R55C4 Carbon Rim BrakeReplacement purifier cartridges for the GEOPRESS are designed to last 350 cycles (65 gal. 250L). Lifespan will decline when purifying water with high levels of silt, sediment or tannins. Cartridge press time increases towards the end of the cartridge lifespan; when press time reaches 25 30 seconds, the cartridge should be replaced. Cartridge continues to protect, even as press time increases. FEATURES Removes waterborne pathogens (viruses, bacteria,