Morrison Bros. Co. has expanded its line of 38” & 44” Lightweight Manholes to include the new 418LC Cam Style series.  The 3 cam system allows the user to easily rotate the hardware to the locked or unlocked position.  When in the closed positions, the cams provide a water resistant hold down mechanism. The stainless steel and nylon assemblies are part of the cover which will reduce the risk of losing the parts.