Product Details
- MaterialGalvanized steel
- Size (In)3/4, 1/2 in
- Weight0.4 lbs
- Dimensions4 x 4 x 1-1/2 in
Description
The Devco® PI391 Extension Rings, 4 in. length, 4 in. width, 1-1/2 in. depth, 21.0 cubic in. capacity, 3/4 and 1/2 cubic in. knockout are used when extra cubic inch capacity is needed for additional wiring. Galvanized steel.