Superflex HD is engineered for applications requiring higher pressures. It comes standard in 321 and 316L hose with a 304L stainless steel braid. Superflex HD is a mechanically formed annular corrugated product. While its corrugated wall is heavier than our standard Superflex, it retains a high level of flexibility due to a closer pitch corrugation. Superflex HD is stocked in standard sizes ranging from ¼” to 6” diameters. Single or double braid reinforcement can be supplied in all sizes.