When choosing an pneumatic air hose, you can choose between two varieties: retractable and coiled. Retractable hoses are straight with no bends or coils. They can be curled into a circle manually for storage, or used with a hose reel, which is a device that curls the hose around a circular base, either electronically or by turning a handle. The coil hose has many small, regular twists that compact the hose into a smaller length. Coil hoses have a memory, so when the operator lets go, the hose shrinks for easy and compact storage.
