Clear Plastic Tubing: 12mm inner diameter, 15mm outer diameter, 3 meters length. 23℉ to 149℉ working temperature. Please clean the water with cold water before use. Food Grade: PVC tube is made of non-toxic ingredients conforming to ROHS, REACH and FDA standards and is safe to use and well suited for kitchen usages, some solid materials. ***Please contact us for more certification information. Durable & Flexible: Our plastic tubes are easy to use, shape, and bend and can be easily cut by any cutting tool. Smooth interior and exterior that prevents sediment accumulation and allows easy flow and flushing. Can be used with most commercial barbed fittings and connectors. Multi-Purpose: Ideal for general use such as beer brewing, food processing. Also used as air hose for ponds, drain, water line, pumps, vacuum, siphon, filters and other industrial uses like medical, surgical, laboratory applications for transferring liquid and gas. Good Service: Our aim is to provide durable tubes. Any questions, please feel free to contact us and we will provide solutions within 24 hours., Manufacturer: QDONGYU