This is a listing for the main unit (with one cartridge) and a set of 4 replacement cartridges. ◆ Provides delicious, purified water for your dog's walks. A water purifier that's gentle on your dog. Purified water for drinking during walks. ◆ The etiquette shower for cleaning up after your dog uses the toilet uses raw water for hygiene! ◆ When the tray is closed, the lever moves to the water stop position, preventing water from accidentally flowing. ◆ Compact size that can be carried with your dog walking bag. ※ This product is not intended for the treatment of diseases. ※ Do not use with plastic bottles that do not fit the diameter or thread. ※ Always put the lever in the water stop position when storing. ■ Specifications ■ Purification Capacity (JIS S 3201 test results): Free residual chlorine (total filtration volume 60L, removal rate 80%) Cartridge replacement period: Approximately 2 months (when using 1L of purified water per day) Materials: ・Main body: ABS resin, silicone, NBR, polypropylene, stainless steel ・Cartridge body: ABS resin, filter material: activated carbon, non-woven fabric Main body dimensions: Approximately width 75 x depth 180 x height 82mm Weight: 53g Accessories: 1 cartridge