2" x 4" Smooth
Part #: AL2040S
Suitable for structures that require very high load requirements. The 2" x 4" shape is ideal for heavy duty machine bases, support structures, stairways, mezzanines and anywhere where maximum structural strength is needed. The 2" x 4" shape also has four hollow centers that will accommodate multiple air manifolds. Pressure up to 150 p.s.i.