Application: As suction and transport hose especially ideal for abrasive solids such as dust, powders, wood chips, granulates and ect. Also are suitalbe for ventilation and air conditioning system, industrial vacuum cleaner. Features: - Extremel y flexible and compressible - Extremely abrasion-resistant - Tearing resistant - Very transparent wall - Sizes ranges from 1" to 12" are all available - Wall thickness ranges from 0.4mm to 1.2mm are available - Different co lo rs a re o pt io nal Working temperature range -40 to +90 degree Material: - Wall: Top grade of Polyurethane - Spiral: Copper coated steel wire