The Superlec 12123B Galvanised Adaptable Knockout Box is used to extend or repair electrical circuits.
The main features of the 12123KB 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) 75mm
** Image is for illustration purposes only **