Hubbell Wiring Systems B2537 Cast Iron Flush Round Single Service Metal Concrete Floor Box with Brass Collar, 33 Cubic Inches Capacity, 4-27/32" Length x 4-27/32" Width x 2-7/8" Height

Hubbell flush round single service metal concrete floor box. Made of cast iron. Fully adjustable. Brass ring. 3 inches minimum depth of pour. Concrete cover and closure plug included. 3/4 inches four way threaded conduit hub. UL listed, File Number E31999 and CSA certified, File Number LR18416. 33 cubic inches capacity. Measures 4-27/32 inches length by 4-27/32 inches width by 2-7/8 inches height.