1、EASY WATER CHANGES: Aquarium water change valve is convenient and hassle free, so you don't have to go through the time and effort of manually pouring water and changing it with ease. 2、3 WAY VALVE: Fish tank water changer connector utilizes a 3 way valve to easily control the water level, ensuring that the water level in your aquarium is just right. 3、COMPATIBLE WITH 16/22 HOSE: 3 way water flow control valve is compatible with 16/22 hoses and works with all types of fish tanks, making it easy to match your existing equipment. 4、DURABLE AND STABLE: Aquarium water changer connector is made of durable plastic material to ensure stability and durability during long time use. 5、SCENARIOS: Water changer adapter is not only suitable for home aquariums, but also for all types of aquariums to meet your water change needs in different scenarios. Item Type: Aquarium Water Change Valve Material: Plastic Straight Two End Connector: Connect with Internal 16mm / 0.63in External 22mm / 0.87in Water Pipe Valve Connection: Inner 12mm / 0.47in Outer 16mm / 0.63in Water Pipe 1 x Aquarium Water Change Valve Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.