UltraPress Purifier Cartridge Mattresses The biggest skillet in our

The biggest skillet in our cast iron line

Great for brewing coffee for large camping groups

Featuring an updated 100 lumen Flexlight with ChromaReal LED technology

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easy-care compact package

UltraPress Purifier Cartridge Mattresses The biggest skillet in ourReplacement 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.