This item has been stored at home and has never been used since purchase, so it is new and unused. An ultra-lightweight portable water filter that can filter up to 100,000 gallons of water. - Brand: SAWYER - Model Name: MINI - Filter Capacity: Up to 100,000 gallons - Usage: Compatible with straw, squeeze, and bottle - Removes: Bacteria, protozoa, and cysts - Kit Contents: Filter body, reusable bag, cleaning plunger - Weight: Ultra-lightweight 2 ounces