Aquarium Air Pump Accessories, 21 PCS Pump Kit 16.4 ft Airline Tubing, 4 Air Stone, 4 Check Valves, 4 Control Valves, 4 Suction Cups, 2 “I” Connectors, 2 “T” Connectors

Product description

Features:

5m/16.4 feet Black Airline Tubing ---- Standard size hose, OD 6mm/0.23", ID 4mm/0.16". Flexible silicone materiale

4 Bubble Release Air Stone ---- Approx. 18mm x 50mm (0.7'' x 2''). Produce lots of tiny bubbles continuously to diffuse oxygen efficiently in your fish tank

4 Black Suction Cups ---- 6mm/0.23" inch inner diameter tube holder suction cups will stick tightly to the smooth fish tank

4 Check Valves ---- Put the CHECK VALVE in the airline tube between air pump and aquarium water to prevent water from back siphoning

4 Control Valves ---- The special airflow regulating valve of the aquarium is convenient for adjusting the gas volume of the air pump

4 Black Connections ( I & T ) ---- T-connectors can combine two inputs to create one stronger output; I-connectors apply for mending or extending air hose