Hubbell flush round single service metal concrete floor box. Made of stamped steel. Fully adjustable. Brass ring. 3 inches minimum depth of pour. Concrete cover included. 2 1/2 inches and 1 3/4 inches side knockout, 1 1/2 inches and 1 1/2 inches end knockout, 3 1/2 inches and 2 3/4 inches bottom knockout. UL listed, File Number E31999 and CSA certified, File Number LR18416. 37.3 cubic inches capacity. Measures 6 inches length by 4 11/16 inches width by 2 29/32 inches height.
