Our SpaceMaker hose allows unrestricted, continuous ventilation during entry and exit of a confined space. There are no accessory parts. Stores in a regular hose canister. Hoses are 8” (20 cm.) in diameter and are available in 15’ (4.57 m.) (model SpaceMaker15) or 25’ (7.62 m.) (model SpaceMaker25) lengths. Note: not for use with heated air above 250°F.