Standard airline tubing (10' length)
3/16 diameter aquarium air pump tubing.
All tubing is high quality Lees Aquarium Vinyl Tubing, NOT easily "kinked" low quality thin walled tubing commonly sold in hardware stores such as Home Depot.
All Tubing is sold in lengths of 10 feet.
As an example, if you change the number to (2) in your shopping cart of a tubing sold by 10' lengths, you will be shipped a 20 foot length of tubing OR if you purchase (5) 10' lengths, you will be shipped one 50' length of tubing.