High-performance water purifier with liquid volume display, 30% water saving. This product has the highest water purification grade. Purchased new and installed for six months. Since I live alone, the filter should still be usable, but I disassembled everything and cleaned it as thoroughly as possible. The batteries will be removed for safety during shipping. The box will be folded and included. - Brand: Cleansui - Model: CSP901 - Purification Capacity: 16L/day - Compatible Faucets: 16mm, 19mm, 22mm, 24mm Thank you for viewing. - Brand: Cleansui - Model Name: CSP901 - Features: Liquid volume display (cc display) - Water Quality Grade: High Grade - Water Saving Rate: 30% water saving - Cartridge: HGC9SZ-AZ Thank you for viewing.