Material:Inner surface: Chemically resistant nylon tubeOuter surface: Highly abrasion-resistant, oil-resistant, weather-resistant, and ozone-resistant polyurethaneOperating temperature: -40℃ to 100℃ (up to 70℃ for synthetic oil and hot water)Working pressure (WP): 430 barFitted with couplersQuantity: 10EA/BoxSpecifications: 1/4"" x 1W x 15M