Spiral Duct | McMaster-Carr
Abrasion-Resistant Duct Hose with Wear Strip for Wood Chips and Plastic Pellets. Tough both inside and out, this durable polyurethane hose has a metal spiral that acts as a wear strip to protect against damage. Duct Hose with Wear Strip for ... Blo-N-Vent Duct Hose for Air.
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