Unused, unopened compatible filters for Shop Japan's Invictus One. Quantity: 3 pieces. Unused, unopened items will be sent. These filters work without issue in my own Invictus One. ◯ Invictus One: Tested and working ◯ Invictus One V2: Same specifications ◯ Invictus One Light: Same specifications ✕ Invictus One Grand: Not compatible Shipped via standard mail, so there will be no shipping or delivery on weekends or holidays. Please note that it may take 3 days to 1 week for delivery. Will be shipped in a sturdy box, such as an empty snack box, to prevent crushing. This item is not subject to price reduction. Please understand.