MyBottle Microfilter ReplcCartrdg Description This replacement cartridge prolongs the life of your Katadyn Micro Filter Water Bottle. Pleated glass-fiber microfilter with granular activated-carbon removes Giardia and most bacteria. Shipping Dimensions Weight: 0.3 pounds. Dimensional Weight: 0.43 pounds. Dimensions: 3.25" (W) x 3.125" (H) x 7.125" (D) Weight Disclaimer: * Weight may vary based on configuration.