This black, opaque, and highly flexible hose made of premium fluoroelastomer (Viton/FKM) is engineered for maximum durability and chemical resistance, making it the ideal solution for demanding laboratory and industrial environments. Designed to withstand fuels, oils, solvents, concentrated acids, bases, alcohols, chlorinated and aromatic agents, it maintains excellent performance even at elevated temperatures ranging from -20°C to +200°C, with short-term resistance up to +300°C. Its flame-retardant properties, combined with outstanding resistance to ozone, UV radiation, aging, and harsh weather conditions, ensure long-lasting reliability in both indoor and outdoor applications. The opaque black wall effectively protects light-sensitive media, while its flexibility makes it perfectly suited for peristaltic pumps and other precision systems. Offering an economical alternative to VERSILON™ F-5500-A, this hose is available in practical roll lengths of 50 m (25 m for diameters 4–12 mm, 5 m from 15 mm), with working pressure defined by a 1:5 safety factor relative to burst pressure. With hardness levels of 60° or 70° Shore (A) depending on size, a density of 1.90 g/cm³, and a brittleness temperature of -20°C, it guarantees stable performance across a wide range of applications. Each hose is packaged in the CLEAN ROOM of Tubes International under strict quality standards, ensuring purity and safety of use; please note that returns are not possible once the packaging has been opened.