Solidly constructed of quality materials here in the USA, this rotating sparge arm is a good investment for your homebrewing system. Gravity fed sparge water causes the sparge arm to rotate, creating a slow, even sprinkle of water over the grain bed. This 10.75" sparge arm is constructed of stainless steel with rubber end caps. Includes 13 7/8" bracket assembly made of food grade HDPE to position the unit over the grain bed, allowing for easy height adjustment. A 6' length of 5/16" i.d. food grade tubing is included. This will snugly fit a 3/8" barb if the tubing is heated slightly.