Water Wall, 45032-O. 6' long x 32" high x 18" wide, durable high density polyethylene. NCHRP 350 approved as: TL-1 Longitudinal barrier, TL-2 Longitudinal Barricade, and TL-3 Barricade. Large 8" fill hole speeds filling process, includes twist-lock plastic cap. Includes one steel connection pin that allows sections to be locked together. Fork lift and pallet jack holes for easy movement. Hinge design allows for a 30 degree pivot between sections. Tamper resistant, corner offset drain plug with course buttress threads.