DescriptionT Shaped Aquarium Valves allows you to control the flow of vital O2 from your aquarium air pump as you need. Professional and practical, very convenient. Fish tank adjusting let you operate it easily. Efficient distribution, more convenient. Valves design allow you control the flow of vital O2 from your aquarium air pump when you need. And the practical aquarium valves can meet your needs.Features-Color:Blue -Material:ABS -Size:4.00X2.00X0.40cm/1.57X0.79X0.16in -Made of premium ABS, strong and durable, fine workmanship, long service life. -Easy installation, just insert the connector directly into the air pipe. -With the help of this adjusting valves, you can control the air inflow.-Scientific design, this controller is suitable for connecting the fish tank air pipes.-Exquisite in appearance and exquisite in craftsmanship, it is very suitable for most fish tank in the market.