Draper High Visibility Hybrid Air Hose, 20m x 8mm, 1 4" BSP, Yellow The Best Carry On & Overnight Bags Under $200. This high visibility hybrid air hose is made from premium nitrile rubber and PVC to create a strong and flexible hose. Designed to provide performance, flexibility and durability at temperatures as low as 40. No memory effect to ensure the airline lays flat rather than coil back into shape. Fitted with 1 4" BSP female swivel unions for easy connection. Performance, flexibility and durability at temperatures as low as 40 Made from premium nitrile rubber and PVC No memory effect to ensure airline lays flat rather than coil back into shape Fitted with 1 4" BSP female swivel unions