Purestone filter system, complete, less filter(available online). This filter has given us three years of perfect tasting water from our water tank">fresh water tank. Included is a teak shelf that mounted filter canister under galley sink. Complete installation and operation directions included. We have well water at our home, which made us particular with the taste of our drinking water. A filter gave us a full season with no odor, or taste. Compare with Seagull filter. $120, includes shipping to US only.