Ships in 1-2 business days | Based in Switzerland | Est. 2016 Replacement EZ-Clean Membrane that works with all BeFree Systems by Katadyn. Please note that this does not come with a drinking cap or carbon filters. Replacement Carbon filters are HERE. BeFree - Activated Carbon bottle and flip cap are HERE. _______________________________________________ Specs Thread size: 42mm Pore Size: 0.1 micron Removes: sediments, cysts, protozoa, bacteria Flow Rate: up to 2L/min Filter Life: tested to 1,000 liters; individual results will depend on water quality Materials: Hollow fiber Made in South Korea