[Universal Compatibility] Designed for optimal use with spas, this 2-pack of spa filter cartridges is fully compatible with PBF40 and PBF40-M, as well as Wellspring 10-00282 filters. Ideal for various water temperatures and settings including pools and spas, ensuring a clean and refreshing experience. [Superior Filtration Efficiency] Crafted from high-density plastic fabric, our spa filters feature an advanced pleated design that maximizes the filtering area. This allows for effective removal of impurities such as sediment, hair, leaves, and sand, enhancing water quality and ensuring safe, enjoyable use. [Innovative Design] Each pack includes two cartridges with a dual-shape design: one end round and the other oval. This design accommodates specific spa models with protruding core tabs, ensuring a secure fit and optimal filtration. Please verify compatibility with your spa model before purchase. [Easy Maintenance] Constructed from premium plastic materials, these filters provide efficient water purification and are easy to clean and maintain. Regular cleaning promotes longevity and helps reduce costs while maintaining clear water in your pool or spa. [High-Performance Filtration] Utilizing advanced three-leaf fabric technology, our filter cartridges excel in trapping and removing water impurities. Recommended for replacement every 1-2 months for best performance, these filters are essential for maintaining a clean and healthy aquatic environment. Color: White Material: Plastic Package Contents: 2 x Swimming Pool Filter Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. The measurement allowed error is +/- 1-3 cm.