All listed hoses in this ad are made from Buna-N (FDA liner).
The hose IDs are: 10, 15, 20, 25, 32, 40, 50, 65, 80, 100 mm. Each liquid end is designed to accept one particular hose ID version.
The hose of a Peristaltic Hose pump is the only component that comes in contact with the pumped medium. Neptune engineers hoses the are manufactured from high quality compounded rubber, reinforced by layers of nylon. Once constructed, the hose is then machined with precision for efficiency, accuracy, longevity, and optimal compression.