Johnson Level 1234-4800 Heavy-Duty Magnetic Aluminum I-Beam Level, 48" Autumn_Cleaning Repeat every 6" to 12"

Repeat every 6" to 12" or more often in highly compacted areas

Assembled with plastic beeswax coated foundation and staples

Built-in Digital Gauge with Inflate Right Technology

Cures fast and develops high early strength for quick installation

Johnson Level 1234-4800 Heavy-Duty Magnetic Aluminum I-Beam Level, 48" Autumn_Cleaning Repeat every 6" to 12"Johnson's Heavy Duty Magnetic Aluminum I Beam Level features strong holding magnetic edge that allows hands free use on ferrous metal surfaces. SurroundView vials that reflect ambient light for easy read. Job Site Tough heavy duty aluminum frame. Ergonomic cushioned hand grips. Top read window maximizes readability. Durable protective, field replaceable, acrylic cover plates protect vials from water and dust. Shock absorbing end caps protect the frame