Get your brewing process down to a science. The Cooler Hot Liquor Tank with Sparging Assembly (AG340) has a 10-gallon capacity with an included sparge assembly disperses sparge water on top of your grain bed. With an insulated design, this tank is made to last from plastic and stainless steel. Smart: This tank has a 10-gallon capacity with an included sparge assembly disperses sparge water on top of your grain bed. Durable: With an insulated design, this tank is made to last from plastic and stainless steel.