Sold by the foot. Enter desired length in feet into quantity box. Made from FDA-sanctioned ingredients Able to resist extreme temperature variation: -100°F to 500°F Translucent natural color for visual contact with the flow Resilient, stretchable, and resistant to compression set Odorless, tasteless, and inert Good electrical and weatherability properties resists U.V., ozone, gases, and moisture Certified by the National Sanitation Foundation (NSF-51) for food equipment materials.