For use with aggressive chemicals and in applications for which high-purity is required. Flexible (Durometer Shore D58) tubing has wide temperature range (–73°C to 204°C). Excellent with solvents, fuels, acids and bases and ideal for work with trace elements. Resin complies with FDA Reg. 21CFR 177.1550 for food contact. Rigidly controlled O.D. for use with compression fittings. Autoclavable. Tubing sold in packs of 50 ft.