The Fermentap Sparge Assembly is an adjustable sparging setup. It features a sturdy base that will accommodate a mash tun with up to a 20 inch diameter. Perfect for cooler systems. Includes the Fermentap Spray Wort Aerator which gently disperses your sparge water on top of your grain bed and has the ability to have the height of the sparge adjusted. Stainless tubing is 3/8" OD.