The MK K8821ALM is an Aluminium, 1 Gang, 38mm deep back box, without knockouts around the side. It does, however, have a knockout in the base. It also has a self-levelling platform which helps ensure the mounting frame is always positioned correctly so it does not need to be adjusted. Self-leveling platforms ensure mounting frame is always positioned correctly without adjustment. Suitable for the MK Grid Plus range. The MK Metalclad Plus Range is made from heavy gauge steel making it a very tough set of products. This means they are ideal use in factories, workshops, garages and sheds. · · · No. of gangs 1-2 · · Mounting type Surface · · Fixing Centres 60.3mm

The MK K2183WHI is a 32mm deep, white moulded PVC, 2 Gang, surface mounting box complete with knockouts in the side and base. It has one ‘cut-out’ for 20mm in top face, two ‘cut-outs’ for 20mm or 25mm oval conduit in lower face and one 20mm round ‘push-out’ in the base. The MK Logic Plus Range is ideal for modern interiors and offer an unobtrusive and sophisticated look. For 2 Gang Logic Plus accessories. · · · Knockouts in the sides and base · · For use with 1 Gang MK Logic Plus power accessories · · Earth terminal fitted in base · · Mounting type Surface · · 1 Cut-Out for 20mm round conduit in top face · · 2 Cut-Outs for 20mm or 25mm oval conduit in lower face · · 1 x 20mm round push-out in base