Package contents: You will receive 2 pieces swimming pool filter cartridge. The quantity is enough to meet your daily cleaning and replacement needs. Please confirm whether your model is applicable before purchasing. Excellent design: The cartridge filter panel adopts an integrated fixed design, which can effectively effect the filter material and prevent it from falling off. bottom, then remove the cartridge filter panel to begin cleaning.(It is recommended to rinse the filter every 4-6 weeks).Washable, inner material is not removableReplacement filters fit Nautilus CC Plus, Nautilus Plus, Oasis Z5i, Aquarius XL, Odyssey, C3, C4, Sigma, M200, M400, M500, M5, Bio, Triton Plus (old), Liberty, Wave 65 and Wave 90 .Product size: 26.5 x 18 x 1.2 cm Product weight: 89gPremium Quality: ABS plastic frame is more sturdy and durable. High quality ultra-thin filters last for 2-3 years. Note: The data is all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.