EXM 1100DER101004 PULL BOX EXT RING W/K.O10X10

The 1100 DER series extension rings are installed over 1100 DF pull boxes to extend the depth of the enclosure. Stand-alone 1100 DER extension rings can also be used for applications which require a pull box with an open bottom. The extension rings are made from 16 GA steel. Four internal mounting holes are provided. Covers are not included with the 1100 DER. When they are used as extension rings, the cover from the 1100 DF box can be installed on the 1100 DER.