Grayl UltraPress® Purifier Cartridge #N/A The Shimano SM-RT56 6-bolt brake

The Shimano SM-RT56 6-bolt brake disc offers exceptional braking performance in every situation

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Grayl UltraPress® Purifier Cartridge #N/A The Shimano SM-RT56 6-bolt brakeReplacement purifier cartridges for the UltraPress are designed to last 300 cycles (40 gal. 150L). 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. The UltraPress and Ultralight replacement purifier