A liquid filtration system compatible for mounting on numerous varieties of disposable and non-disposable plastic/metal containers and which filters out at least micro-particulates (e.g., plastics) introduced at least a part of the manufacturer bottling process when consumable liquid is inserted into the plastic containers. The filtration system now functions as the cap to the bottle to prevent leakage of the liquid from the bottle and to assure the user that the liquid being drawn from the bottle is filtered free of at least micro-particulates. The filtration system can employ a variety of replacement filters of differing lengths for utilization on containers of equally differing volumes and dimensions.