E masani ona aofia ai o loʻo aofia ai paipa paipa, upega lima ma soʻoga. The inner tube is a thin walled stainless stell corrugated pipe with a spiral or annular shape, and the outer layer of the corrugaed pipe is made of stainless steel wire of steel tape. O agamea ma flanges i pito uma o le hose art ma le fetaui lelei ma le flanges o le paipa o le tagata faatau.