- Made from durable and easy-to-clean polypropylene, our 3mm filter is designed to last, making it suitable for a variety of aquarium setups. - Ideal for fish enthusiasts, pet store owners, and home breeders, this product meets the needs of both novice and experienced users. - Our set includes 10 filter check valves that effectively regulate water flow, ensuring a safe environment for your fish. - Prevent fish from being swept away by strong currents with our reliable check valves, providing peace of mind for your aquatic pets. - Applications include freshwater and saltwater aquariums, making it versatile for different species and tank environments. - Its compact size allows for easy installation in various tank setups, enhancing filtration efficiency without taking up too much space. - The high-quality material ensures longevity and consistent performance, reducing the need for frequent replacements. This product combines functionality, durability, and ease of use, making it an essential addition to any aquarium enthusiast's toolkit.