New Dorman pre-heater hose.  This is a flexible duct that typically connects the exhaust manifold riser to the air cleaner inlet for the carburetor, to bring in warm air to the carburetor.  The outer ducting is aluminum and has a 1.5" ID and is 18" long expanded.  Can be cut to fit.  Universal applications.

This CANNOT be used for exhaust or as exhaust pipe!