Effortless water flow control - Easily adjust or shut off aquarium water flow as needed to maintain optimal circulation and simplify maintenance. - Provides greater control and ease of use for day-to-day tank care. Universal compatibility - Fits hoses with inner diameters of 12 mm (approximately 0.5 inches) or 16 mm (16 mm inner diameter). - Available in the sizes you need to meet hose size requirements and achieve precise flow control for an ideal aquarium experience. Durable material - Made from tough, erosion-resistant PP material for long-lasting use. - Polished surfaces are smooth to the touch and comfortable to handle, enhancing reliability and durability. Easy to use - Close both valves to isolate the line and disconnect the tank from the filter for hassle-free cleaning. Use scenarios - Routine maintenance and cleaning: isolate the tank from the filter to perform cleaning without draining the system. - Delicate aquarium setups: adjust flow to prevent disturbance to sensitive fauna or plants while maintaining circulation. - System setup or relocation: quickly isolate sections of the plumbing to reposition or modify equipment without a full shutdown. Product attributes - Function: water flow control valve for aquarium applications - Compatibility: suitable for 12 mm and 16 mm hose inner diameters - Material: polypropylene PP, erosion-resistant - Performance: durable, reliable operation with smooth, comfortable handling This valve provides precise flow control, easy isolation for cleaning, and compatibility with common hose sizes, making it a practical addition to routine aquarium maintenance.