Our biggest rack. 36-shot consumer mortar rack. Comes with 36 plugged HDPE DR11 (1.91" inner diameter) 12" long mortar tubes. For use with all ball and canister aerial mortar shells. This rack works great for 1.75" shells, premium shells, 4, 5, 6, 7" tall consumer canister shells. It has a total of 3 rows (sleeves) and there 12 tubes in each sleeve. The center row is straight up and the left and right are angled at 15 degrees off center.