Imperial Sparge Stainless Steel Arm - Adjustable Width For All Grain Home Brewing On Any Mash Tun The first and only sparge arm that expands to accommodate kettle size Ready out-of-the-box to take your mash efficiency to the next level Sparge and recirculate effectively from small batches to large, high-gravity brews Spans across any vessel size up to 24" in diameter Vertical adjustability accommodates variable grain bed heights