... the pressure capabilities/hardness value of 65 Shore Reinforced Silicone Hose:polyester yarn braiding inside the wall enhances the pressure ... testing and meets USP Class VI, FDA. Resists temperature extremes, compression set, chemical attack, ozone, radiation, moisture, and environmental exposureCustom ... sizes, special cleaning, and/or packaging available Braided/Reinforced Silicone Hose/Tube