NDS Pro-Spec™ water valve box extensions are crafted with thicker walls, reinforced covers, and ribbed structures, engineered specifically for heavy-duty applications.
These extensions feature thicker wall dimensions for added strength and durability, with reinforced covers designed to support heavier loads. Reinforced ribs deliver exceptional sidewall stability, while a stainless steel nut provides bolt-down capability. Overlapping covers prevent the accumulation of dirt and grass between the body and cover, ensuring easier maintenance.