Feature:1. WITH REGULATING VALVE: Water changer with adjustment valve, not only can be used for water change, but also can be used as a fish tank over water tool.2. ADJUSTABLE WATER VOLUME: Aquarium water changer faucet adapter is easy to use. The regulating valve can adjust the amount of water as needed, and can be adjusted to drip status.3. EASY TO MAINTAIN: Fish tank faucet nozzles connectors make daily maintenance easier by opening the valve and draining the water, saving a lot of time and effort to clean up the debris.4. EASY TO ASSEMBLE: Aquarium faucet nozzles connectors are easy to assemble, simple to operate, convenient to change water, with a tee connector, more convenient to connect the hose.5. ROBUST AND DURABLE: Fish tank water changer faucet adapter is made of PP, metal, toughness, corrosion resistance, not easy to damage, long service life.Specification:Item Type: Fish Tank Water Changer Faucet AdapterMaterial: PP, MetalUse: External Filter Barrel With Three Way Water Changer.Package List:1 x Water Changer1 x 3 Way2 x Fixed RingNote:Please allow some error due to manual measurement.