Flange Wizard 38240-T Threaded Pipe Flange Aligners, 1/2" - 1-7/16" Features slotted pins with "friction fitting" knurled nuts for flanges to 30" - 150 lbs All models of the pipe aligner will two-hole (make 2 holes of the flange horizontally level with the ground) and vertically level the face of the flange in one step All models come with 360 vials that just "snap" in and out for easy replacement The aligner inserts easily into pipe, centers snugly against the inside pipe diameter and automatically aligns with the pipe Axis