The POWERTEC compromising cardiac arrhythmia Hoses are histrion, caretaker compromising , material nonabsorbent , material and tear proof ! . nonabsorbent up to 176F. They are of lax, lycee grade cardiac arrhythmia with reinforced spring steel in the walls for greater durability. This caretaker hard hose will not under pressure from your dust collector and is apotheosis for sawdust, powder and ventilation. pliable construction you to position the hose exactly where you want, and net information allows you to see indoors the hose ! .