The unique structural design of the Cap-SL series filter cartridges eliminates the need for cleaning the filter after cartridge replacement, reducing both filter handling costs and cleaning expenses. It prevents direct contact with the slurry, making it suitable for filtering toxic and harmful slurries. The capsule structure reduces the gap between the filter shell and the inner core, minimizing slurry residue. It can be paired with different sizes of inner cores, with lengths of 5", 10", and 20" available to meet various flow rate requirements. The C2SL series is a specially designed capsule filter for ultra-high flow rates, suitable for high-speed coating production lines. It features a built-in 7-core filter with a large-capacity design, greatly extending the service life of a single filter, reducing replacement frequency. It also includes a bottom liquid discharge design for slurry recovery and reuse. The capsule shell design, combined with a high dirt-holding capacity depth-wound inner core structure, is widely used in the slurry coating processes for both positive and negative electrodes in lithium batteries and MLCC. Cap-SL series filter cartridges are designed specifically for high viscosity slurry filtration in the lithium battery industry, with a pure PP shell and good chemical compatibility. At the same time, the capsule design can effectively prevent material leakage when replacing the filter cartridge, effectively reduce the cost of customers, reduce material waste, and reduce direct contact with fluids by operators, thus effectively protecting the operator and the working environment. It can be matched with different sizes of built-in filter cartridge, with a length of 5 ", 10", 20 "optional, corresponding to different flow requirements. Among them, the C2SL series is an capsule filter designed specifically for ultra high flow, which can adapt to high-speed coating production lines. It has a built-in 7-core filter cartridge, with a large capacity design, greatly extending the service life of a single filter cartridge and reducing the replacement frequency, and a bottom drain design, which can be used for recycling customer fluids.