Dual stand only,designed for the Dual Scale-Up Series™ reactors. Stand features: 100ml to 6000ml capacity, lightweight aluminum, adjustable leveling feet and six (6) quick adjustment rod-holding brackets for up to 5/8in (16mm) diameter rods. Base dimensions are 19-1/2 x 30in (DxW) with code -48 at 48in height and code -38 at 38 inches tall. Call for custom heights. Not included are our 6442 family of mounting clamps nor our 11177 family of ring supports that must be sized to the supported vessel.