Cost and basic use - The ink cartridge cost is slightly higher than the paper box. - Replacement cadence: change the box weekly. Foam filter life and reuse - The foam filters are easy to clean and can be reused. - Expected service life of the foam is about two months with normal use. Filter placement and maintenance - The foam filter is designed to be placed inside the box and can be washed and reused several times. - Maintenance note: remove the filter when performing operations with the electrode rod to avoid damage from excessive chlorination, which can cause the foam to burst quickly. Disinfection compatibility and testing - Normal chlorine and bromine disinfection values are suitable. - These foams have been tested at normal concentrations. Attributes and performance - Function: reusable foam filtration within the box to support the disinfection process. - Compatibility: fits in the box and works with standard disinfection practices. - Material: foam filter. - Performance: stable under normal disinfection concentrations; suitable for repeated washing and reuse. Use scenarios - Domestic water treatment: use with standard chlorine disinfection in a home setup; replace the box weekly and clean the foam for reuse. - Laboratory or clinical equipment: during electrode rod operations, remove the foam filter to prevent damage; reinsert and clean after use. - Small-scale filtration in hobby or workshop settings: suitable for aquarium or small water-treatment projects using standard disinfection levels; foam can be reused for several cycles.