This hose has an outside diameter of 4 mm and an inside diameter of 2.4 mm. The hose is made of strong and flexible silicone with a transparent color and is suitable for peristaltic pumps. The hose is sold per 2 meters, with a purchase of several meters this hose is delivered in pieces of 2 meters. https://elecena.pl/product/27739171/opencircuit-silicone-hose-2-4x4mm-transparent-2-meter 2025-01-22 https://elecena.pl/product/27739171/opencircuit-silicone-hose-2-4x4mm-transparent-2-meter 2026-02-20 https://elecena.pl/product/27739171/opencircuit-silicone-hose-2-4x4mm-transparent-2-meter 2026-04-11 https://elecena.pl/product/27739171/opencircuit-silicone-hose-2-4x4mm-transparent-2-meter 2026-04-25