A great way to get into all grain brewing! These 5 gallon coolers work very well as mash tuns for five gallon batches as youll notice barely any temperature loss throughout your 1hr+ mash. Comes with a stainless ball valve cooler kit and a 9" stainless steel false bottom. The barb size on the mash tun for the output is 1/2". All metal parts are stainless steel. This is a complete mash tun and all parts are included so that it is ready for use. Some assembly is required. The standard ball valve is made up of a SS valve and a standard 1/2" bulkhead that will attach to the nipple that attaches to the false bottom. Comes with approx 12" of 3/8" ID Silicone tubing to make the connection from the valve to the false bottom + 2 SS screwclamps.