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Your cart is empty.O-Ring Information: O-Ring Seal Kit Compatible with FX5 and FX6 Performance Filters, Part No. A20207/A-20207, 1-Pack, Prevents Cartridge Leaks Compatibility: O-Ring Seal Kit Compatible with FX5 and FX6 Performance Filters (A218, A219) for Fluval A20207 A20212 A20210 Motor Seals Excellent performance: aquarium o-ring replacement kits are made of high-quality rubber material for strong sealing, reliable performance and wear resistance, and have been repeatedly quality tested by the manufacturer to ensure an extended product lifetime Easy to install: the installation of the O-ring is relatively simple, just remove the broken or aging ones and install our new O-ring sealing kit on them to restore the leakage of the aquarium, the whole process only takes a few minutes, which greatly saves your time and energy! Perfect service: we are committed to providing customers with quality spare parts, your satisfaction is our first choice, if you are interested in the If you have any questions about our o-ring seal kit, please feel free to contact us by email, we are happy to help you! 1. Q: What types of filters does this O-ring kit fit? A: This kit fits FX5 and FX6 high performance filters (A218, A219), please note: this kit does not fit FX4, please check the model you need before purchasing. 2. Q: How many O-rings are included in the package? A: The package contains A-20210 Top Cover Seal (1 piece) A-20207 Motor Seal (2 pieces) A-20212 Snap-on Top Cover O-ring (4 pieces). 3. Q: What is the material of the O-ring? A: These O-rings are made of rubber, which has excellent durability, wear resistance and corrosion resistance, and are not easy to age or oxidize. 4. Q: Can they effectively prevent leaks? A: Replacing this O-ring will restore the performance and efficiency of the aquarium system and effectively prevent leaks. 5. Q: Is it easy to install? A: No special tools are required for installation, just remove the dust cup filter, take off the old gasket, replace it with a new gasket, and tighten the dust cup filter cover.