- Model Number: HC22D2L/S-PW-WB Water Purifier Cartridge - Materials: Polypropylene, Silicone, Activated Carbon, PET This is a Locca Slim R water purifier cartridge. It arrived in November 2025. *The shipping label will be affixed to the box for shipping. locca Water Server Water Purifier Premium Water Slim R Water Cartridge Cartridge only. New, unopened, but there are stains and scratches on the box due to home storage. Please check the photos. We would like to sell this to someone who understands. Please refrain from purchasing if you are sensitive to such issues.