This valve performs well and is built to last. Made of 304 Stainless Steel with high-temperature tolerant Teflon® seals, the valve is durable and can be easily dismantled for cleaning. The full-bore ball port provides excellent flow-through with almost no pressure loss, and the Weldless Cooler Bulkhead includes all the seals, stems and lock nuts needed to install the valve in containers with walls up to 1¾″ thick. Just drill a hole 13/16″ to 7/8″ wide, mount the valve, and tighten the nut.