The Anvil Brewing Equipment kettle ball valve is a made from 304 stainless steel. This durable custom designed kettle drain valve has an integral bulkhead seal that forms an rigid and leak-free joint. The convenient Â½â€ NPT male fitting inside of the kettle allows connection to nearly any accessory. Easy to install in any 7/8â€ hole and will never leak like other weldless connections! Simple to disassemble and clean. Add our dip tube for a complete draining system!