With help of the filter part, it filters effectively remove harmful particles, ensuring that you can enjoy a healthier environment. Each package includes 4 cartridge filters and 4 check valves, all of which are fully compatible with most other devices. Well-made and practical for clean and stable airflow. Replace every 6 months for optimal performance. The installation process is quick and easy, as you can simply replace the old filter with our new one without needing to disassemble your device. High-quality environmentally friendly materials for durability. Economical pack of four filters for cost-effective replacement. Description: Introducing our premium filter replacement kit, designed to provide you with clean and breathable air. Our high-quality carbon filters effectively remove harmful particles, ensuring that you can enjoy a healthier environment. The installation process is quick and easy, as you can simply replace the old filter with our new one without needing to disassemble your device. Each package includes 4 cartridge filters and 4 check valves, all of which are fully compatible with most other devices. For optimal performance and cleanliness, we recommend replacing the filter and valve every 6 months. Our well-made and practical cartridge filter and valve kits guarantee clean and stable airflow, making them an essential addition to your home or office. Item Name: Filter Part Material: Plastic Features: Easy to Install, Eco-friendly, Practical Suitable Model: for So Clean SC1200/for So Clean 2 Size Details: Filter Parts Length: 9.19cm/3.62" (Approx.) Check Valves Length: 9.52cm/3.75" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 4 x Filter Parts 4 x Check Valves