HUBBELL F1339 Floor Box Accessories Adjustable Top

Adjustable top, brass outlet fittings for conduit systems. Future requirements for floor outlets may be accommodated by systematically studding the floor with these fittings, all radiating from one or more floor boxes, from which any changes or additions may be subsequently made by the pulling of wires from box to the outlet. Adjustment tops are male connections to be mounted on elbow or Tee fittings. They provide a pre-pour adjustment and an available connection for above-floor service heads.