This 10-piece set of black air pump diaphragms is designed to maintain optimal oxygen flow in your aquarium system. Compatible with standard aquarium air pumps and filters, these durable replacement diaphragms help ensure consistent oxygen circulation for your aquatic pets. Made from quality EPDM rubber, these components are engineered for reliable performance and longevity. Perfect for both freshwater and saltwater setups, these replacement parts help maintain proper aeration in your tank. Whether you're a casual fish keeper or serious aquarist, having spare diaphragms on hand ensures your pump system stays operational when maintenance is needed The pack of 10 provides excellent value and convenience for long-term aquarium maintenance.