This air line is with a standard size (4mm internal diameter) that fits most standard aquarium air pumps and air stones. It can be used for Hydroponics, Aquarium, Pond, Koi etc.

Specification:
very flexible
durable, resistant to light and oxygen
highly resistant to abrasion
insensitive to chemicals
resistant to oil and petrol
environment friendly, cadmium free
free of toxic compounds

Colour: Black

Material: PVC

Tube Diameter: 4mm internal diameter and 6mm external diameter

Tube Length: 10 M
Conversions:1cm=0.03937 inch,1 inch= 2.54cm, 1 mm= 0.039inch, 1 inch=25.4 mm

Package includes:
1pc 10M Aquarium Tube