This Advanced travel filter fits the 700ml, 800ml plastic bottles, stainless steel bottles, Military Canteens and Water Pump and has a 400+ litre capacity. It will remove up to 99.99% of all contaminants, and 99.9999% of viruses and diseases. Suitable for rivers, lakes, streams, untreated fresh water sources in any country. The advanced filter comes with a yellow label on the side which says Advanced so you can differentiate between your standard filter from your advanced filter if you have both. The Advanced Filter has approximately a 20% reduced flow rate due to the extra iodinated resin barrier which kills viruses and bacteria to 6 log reduction.