4″ x 1-1/2″ deep Octagon extension ring, steel, 2 each 1/2″ & 2 each 3/4″ Knockouts, 16-1/2 CUIN.
- Depth 1 1/2 inch; diameter 4 inch
- Capacity 15.5 cu inch; shape octagon
- 4 knockout(s); knockout size (2) 1/2 inch conduit sides
- (2) 3/4 inch conduit sides; galvanized 0.0625 inch steel