AQUA 2 Filter improves water quality by approximately 60% with its 5-layer structure. [Unopened] 2 boxes of 3 filters each [Opened] 1 box (2 filters) Totaling 8 filters. - Model: AQUA 2 - Filter Type: 5-layer structure filter - Package Contents: 3 filters x 2 boxes, 2 filters (Total 8 filters) - Water Quality Improvement: Approximately 60% improvement - Application: Supports water purification Thank you for viewing.