Type: 2 heads Size: 40*60mm Color: silver Material: stainless steel Package content: 1 piece Oxygen Pump Air Volume Control Valve 1. Easy to use Our stainless steel aquarium air pump accessories are equipped with a flow control valve, which adjusts the airflow precisely and is easy to use. 2. Shunt gas Oxygen ventilator pump accessories, can be used for shunt gas. The flow can be controlled manually. Suitable for all aquariums, such as fish tanks, heavy duty professional commercial air pumps and so on. 3. Good Quality This aquarium air flow divider is made of high quality stainless steel, smooth surface, durable and sturdy, long service life. 4. Widely used This aquarium air diffuser is used for aquarium and aquaculture applications. Air lever valve can be connected to the aquarium hose.