Features: 1.Made of quality plastic material, safe, non-toxic, sturdy and durable. 2.Aquarium and oxygen supply system components, used in conjunction with adjustable gas pump tube size, with check valve function. 3.Lightweight, easy to install and use. High simulation, convenient to clean. 4.4 different type for you to choose, meet your different needs. 5.Suitable for aquarium and fish tank air pump. Specifications: Item type: Air Pump Adjustable Air Valve Material: plastic Color: green Options: 2 outer, 3 outer, 4 outer, 5 outer 2 outer air valve size(length x width): Approx. 8x6cm/3.1x2.4in 3 outer air valve size(length x width): Approx. 8x7.5cm/3.1x3in 4 outer air valve size(length x width): Approx. 8x9.5cm/3.1x3.7in 5 outer air valve size(length x width): Approx. 8x11cm/3.1x4.3in Packing List: 1 x Air Pump Adjustable Air Valve
What's in the box
1 x Air Pump Adjustable Air Valve