Survivor Filter PRO Replacement Carbon Filter. Fits the OLD Survivor Filter Pro Outdoor Water Purifier. For Upgraded PRO LE Filter please see new Carbon Filter Listing with Locking Mechanism. OFFICIAL Replacement Carbon Filter for Survivor Filter Outdoor Water Filter Model L610 EASY TO REPLACE: Simply remove used Carbon Filter and replace with the new one ! BEWARE of IMITATIONS: Use only Official Survivor Filter replacement filters to keep your Survivor Filter Triple Filtration Water Filter Straw in top condition. All Survivor Filter products are shipped from North America. Beware of Foreign Immitation Sellers Shipping from Countries Outside North America.