Plastic cylindrical level vial specifications Diameter(mm) x Height(mm) 5 x12 7x16 7x26 6.1x13.6. 6.5x29 8x20 8x23 8x31 8x35 9.5x25 9.5x34 9.5x40 10x30 10x35 12x40 11x30 13x32