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 Adapter Material: PP, Metal Use: External Filter Barrel With Three Way Water Changer. Package List: 1 x Water Changer1 x 3 Way2 x Fixed Ring Note: Please allow some error due to manual measurement.