HVAC ductwork includes pipe or closed conduits made of sheet metal, fiberglass board, or other suitable material for conducting air to and from an air handling unit.
Industrial hose covers the broad spectrum of fluid transfer lines. Hose is usually flexible, often reinforced, and available in a wide range of material compositions to cover various hydraulic and pneumatic industrial applications.
Tube fittings connect runs of tubing for in-line, offset, multi-port, and mounting configurations to other tubing sections, pipe, hose, and other fluid transfer components.
Tubing is used to transport fluid and gas in pneumatic, hydraulic, or process applications. Tubing differs from pipe in that tubing's outside diameter or size is controlled and used for product designation.