Size: about 18.7cm/7.36inch These three kinds of gas distribution valves are used for aquarium gas pump to distribute airflow and can Independently control the gas volume of each adjustment switch. The operation is simple, convenient and durable. Necessary for aquarium and breeding. Material: Plastic, very practical. This product has exquisite appearance and exquisite craftsmanship, which is very suitable for aquarists ordinary and enthusiast. The air inlet is suitable for connecting various air hoses with an inner diameter of 4mm and 8mm, and the air outlet is suitable for connecting the air hose. general air pump air with an inner diameter of 4mm. Easy to use, durable and practical.
