Fabricated from silicone subject material, the aquarium air line pipe is non-toxic, so it won’t have an effect on water quality, simple to put in.
Comes with 5 pcs air pump non-go back check valve,compatible with usual aquarium air pipe of 4mm inner diameter. allow a just right amount of air through and save you aquarium water back filling your air pump.
Airline tube diameter: 4 mm usual aquarium air pipe internal diameter and 6mm external diameter, and total length is 5 meter/16.4ft.
Aquarium Air Line Hose with check valve suitable for both fresh and salt water.
The length of the aquarium hose is 5m and meet your basic wishes. Airline Tubing is transparent.