Original Xiaomi Replacement Water Filter Element for Xiaomi Mi Water Purifier Drinking Water Filter (S-CA-3111)1. Compatible with Xiaomi Mi water purifier. 2. Made from superior active carbon, has strong capacity to absorb peculiar smell and heterochrome. 3. Easy to apply it to your Xiaomi water purifier. Please note that you'd better to replace it 1 2 times a year. Specification: General Material Active Carbon Package Weight One Package Weight 0. 54kgs 1. 18lb One Package Size 34. 5cm * 6. 5cm * 6. 5cm 13. 58inch * 2. 56inch * 2. 56inch Qty per Carton 25