Dickson C439 Circular Chart, 8"/203mm Diameter, 7-Day Rotation, 0/250, 0/0.25  F/C Range (Pack of 60)
Circular Paper Chart, Chart Size 8 In, Range 0 to 250, Recording Time 7 Day, For Use With 1APA6, 1APA7, 1APA8, 1APA9, and 1APB1, Package Quantity 60 Circular ChartsAll meet OEM specifications. 31-day charts are available; call your local branch. On DrillSpot.com , search for "31 day circular charts."