The convoluted open pitch, heavy wall hose assemblies, have a heavier wall than a typical convoluted hose and can handle vacuum applications in temperatures up to 500 degrees F. Also, according to the manufacturer, the additional tubing thickness provides an improved bend radius, greater kink resistance and reduced permeation. The hoses are manufactured in sizes from ½ inch I.D. up to 4 inch I.D. with a Stainless Steel, Polypropylene, PVDF, or PEEK™ braid. Accessories such as fire sleeves, spring guard or heat shrink for color-coding are also available. Static dissipative assemblies can be provided upon request.