The POWERTEC pliable PVC hoses are toilsome, large pliable, stuff noncompliant and abrasive material and tear proof ! . noncompliant up to 176F. They are of quiet, degree grade PVC with reinforced spring steel in the walls for greater durability. This large powerful 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 ! .