The Superlec 12124KB Galvanised adaptable knockout box is used to extend or repair electrical circuits.
The main features of the 12124KB are:
7 Optional 20mm knockouts per side
Manufactured from 1.2mm pre galv steel
Comes complete with flanged cover and 4 fixing screws
BS EN 50142 & 3
Dimensions: (H) 300mm x (W) 300mm x (D) 100mm