Description: Compatible models: PWW50L and 4CH-949 series. Pool Filter Cartridge Replacements, This 4CH-949 filter massage pool filter could make sure the water clean and fresh. The filter efficiently removes hair, leaves, dust, sediment, sand, etc.Strong Filtration of the filter cartridge. 4CH-949 hot tub filter is made unique filtration fabric structure, durable which could make the filter cartridge achieve reusable. The filter adopts 25% thick filter cloth, which can provide strong propulsion and clear water, bringing you a relaxing and healthy enjoyment. Specification: Material: Plastic Size Chart: 125x378mm/4.92x14.88inch Thread: 46.5mm/1.83inch Package Includes: 1x Filter Cartridge Replacement Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.