A great way to get into all grain brewing! These coolers work very well as mash tuns, as you'll notice barely any temperature loss throughout your 1hr+ mash. Comes with our new weldless valve and our 12" stainless steel false bottom. The barb size on the mash tun for the output is 3/8". Tubing included with this Mash Tun is Silicone, and designed for the higher temperatures that you'll encounter during sparge.