EXM 1100 DER121204 Pull Box Extension Ring 4 in D ANSI/ASA 61 Gray/Powder Painted

The 1100 DER extension rings are installed over 1100 DF pull boxes to extend the depth of the enclosure. Standalone 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 and bonding screws 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.