Johnson Level J72 Aluminum Straight Edge, 72" ChristmasLighting Integral one-piece fence is adjustable

Integral one-piece fence is adjustable and tilts 0-90 degree

fireplaces and furnaces

Not intended for indoor use

Incredibly easy to install and compatible with a host of heating and cooling systems

Johnson Level J72 Aluminum Straight Edge, 72" ChristmasLighting Integral one-piece fence is adjustableHeavy duty extruded aluminum straight edge. Screened, thermal bonded black graduations in 1 8", 1 16". Bold, easy to read graduations and numbers. Clear, protective anodized finish. 72" Screened, thermal bonded increments graduations in 1 8" and 1 16" EM models feature screened, thermal bonded black graduations in 1 8", 1 16" and 2mm Bold, easy to read graduations and numbers Clear protective anodized finish Heavy Duty extruded aluminum straight edge.