Horizontal vial permits reading vertically and Full length magnetic edge with V-groove. Adheres to ferrous surfaces.

One-piece with closed end, lightweight, high-impact, foam-mold polystyrene construction. Large, highly visible 3-position vials with snap-on black vial covers; easy to replace. High visibility Glo frame with convenient hand holes.

One-piece with closed end, lightweight, high-impact, foam-mold polystyrene construction. Large, highly visible 3-position vials with snap-on black vial covers; easy to replace. High visibility Glo frame with convenient hand holes.

581-18 Style: Len.:18", No. of Vials:3 (part# 581-18) This item features: -Solid I-beam frame with magnetic edge. -Top read window. -Replaceable acrylic vials. -Beveled end plates protect from shock. -High visibility yellow. -Vial Positions: 1 45 , 1 Level, 1 Plumb. -Vial Material: Plastic. -Base Type: Magnetic. -Structure: I-Beam. -Brand Name: Magnetic Unitek . -Type: Builders Spirit Level. -Price is for 1 Each.

Silver anodized, extruded aluminum I-beam frame with shock-absorbing, protective end-caps. Barrel vials fit into precision-stamped cutouts and are held in place by "Quick-Change" ABS plastic vial covers for easy replacement. Rule screen-printed on one leveling surface, calibrated in 16ths on one edge and centimeters on the other.