This six piece bulkhead from Bayou classic is used to turn any cooler into a mash tun, or pot into a pot with a spigot. Leak-free and easy to install, this product comes with two high temperature o-rings, two stainless steel lock nuts with recesses for the o-rings, a 1.5in. stainless steel nipple, and one 1.5 in. stainless steel bushing. Requires 7/8 step-drill bit.