Kapro 105 TOPGRADE™ Spirit Level – 48" The Kapro 105 TOPGRADE™ 48" Spirit Level is a professional gradient box level built for precision leveling and slope measurement on demanding jobsites. Constructed with a rugged aluminum box profile and solid acrylic shockproof vials , this 48" level delivers dependable accuracy and visibility for a wide range of construction, plumbing, grading, and finishing tasks. Featuring high-precision accuracy of ±0.5 mm/m , the Kapro 105 includes pre-set gradient vials at 0%, 1%, and 2% , making it easy to check slope and pitch without additional tools or calculations. A precision-milled base ensures stable surface contact, while shock-absorbing rubber end caps protect the level from everyday impacts and jobsite wear. Designed for professional tradespeople who need extended reach and consistent performance, the Kapro 105 TOPGRADE™ 48" combines durability, accuracy, and slope-ready functionality in a long-format spirit level. Key Features High-precision accuracy: ±0.5 mm/m Gradient vials at 0%, 1%, and 2% for slope and pitch checks Solid acrylic, shockproof vials for clarity and durability Robust aluminum box profile with precision-milled base Shock-absorbing rubber end caps for impact protection Ideal for construction, plumbing, tiling, masonry, and grading Accurate. Durable. Extended Reach. The Kapro 105 TOPGRADE™ 48" Spirit Level delivers professional-grade performance for longer spans and larger layout tasks on the jobsite.