When you choose the Ace Hardware stainless steel braided Dishwasher supply line, you're choosing a product that starts with an extruded core of PVC tubing. The core is then over-braided with polyester yarn and another layer of PVC material. The final layer consists of stainless steel braid to form a strong, yet flexible supply line. Brass nuts on both ends of this appliance connector ensure a solid connection on the inlet and outlet ends.