QIODAZOO 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

• 【PACKAGE INCLUDE】 1 x airline tubing, 4 bubble release air stone, 4 black suction cups, 4 check valves, 4 control valves, 2 "I"-Connections, 2 "T"-Connections
• 【Material】 Plastics ( When used for the first time, due to the sealed packaging, the Tubing will have a little peculiar smell. It is recommended to soak in clean water for 1 hour before use. )
• 【Size】 16.4 feet / 5 meters length airline tubing, 4mm / 0.16" inner diameter( And the inner diameter of other accessories are 4mm / 0.16")
• 【Widely use】 The aquarium air pump valve distributors set is suitable for all aquariums
• 【Reminder】 Soak the air stone in the water for 1 hour before first usage; Check and replace the air stone if it stops working properly

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