Polyethylene valve box Pro-Spec™

NDS Pro-Spec water valve box extensions have thicker walls, reinforced covers and ribs, NDS Pro-Spec™ series were engineered for heavy-duty use. Thicker wall dimensions for increased strength and durability Reinforced covers for heavier loads; reinforced ribs offer exceptional sidewall strength Stainless steel nut on boxes for bolt-down capability Overlapping covers prevent dirt and grass from settling between body and cover NDS Pro-Spec are available in a wide variety of sizes, colors and designations, all NDS boxes and lids contain UV inhibitors for sustained durability and performance in direct sunlight.