Level Builder Should your level be: Acrylic Acrylic Tubular VialsAcrylic Circular VialsGlass Circular VialsGlass Tubular VialsPlastic Circular LevelsPlastic Tubular Levels Diameter 0.236" (6.0mm)0.276" (7.0mm)0.315" (8.0mm)0.370" (9.4mm)0.374" (9.5mm)0.375" (9.5mm)0.386" (9.8mm)0.394" (10.0mm)0.438" (11.0mm)0.500" (12.7mm)0.590" (15.0mm)0.610" (15.5mm)0.687" (17.4mm)0.708" (18.0mm)0.748" (19.0mm)0.750" (19.0mm)0.787" (20.0mm)0.866" (22.0mm)0.875" (22.2mm)1.000" (25.4mm)1.181" (30.0mm)1.250" (31.8mm)1.299" (33.0mm)1.438" (36.5mm)1.500" (38.1mm)1.750" (44.5mm)2.000" (50.8mm)2.250" (57.2mm)2.750" (69.9mm) Sensitivity 1 Minute (60 seconds) per 0.1"10 min/.1" (8min/2mm)130 Min /.1"(102mm/2mm)130 min/.1" (102min/2mm)20 min/.1" (16min/2mm)20 min/.1" (18min/2mm)30 min/.1" (24min/2mm)35 Min/2mm45 min/.1" (35min/2mm)60 min/.1" (47min/2mm) Fluid ClearYellow Configuration 2 Lines4 LinesCrosslinesMulti CirclesOne CircleSensitivity: 10 min/DivisionSix (6) Concentric Circles Build Build Step One`` Step Two Step Three Step Four Step Five Build