The hose is 5 1/8" (13 cm) in diameter(outer edge to outer edge),CLOCKWISE twisting direction. If you have the attachment where this hose is twisted into, this hose should be slightly smaller than the attachment to fit into.
The hose is 5.12 inches / 13 cm in diameter ( outer edge to outer edge)
Universal Fits to various Portable Air Conditioners using 5" diameter hose
Compatible to Haier AC using 5" inches diameter hose.
It is EXTRA LONG hose, can extend to 72" /6 foot /183cm long
Haier O.E.M. Parts# AC-1830-07, Excellent Quality.