This Lifegard Aquatics 3/4" ID Black PVC Aquarium Hose is sold in 10 foot increments. If you buy quantity two, you will get a single piece of hose that is 20 feet in length, etc. The limit for a single piece of hose is 100 feet. 1/8" wall 1" OD. Super flexible. Kink resistant. Safe for salt and freshwater environments. Safe for salt and freshwater environments. Non-toxic so it will not harm your fish. Resistant to kinking.