Click Grid Pro 3 & 4 Module Universal Yoke GR20400 Universal Yoke for 3 and 4 Modules. Simply snap of the tabs to allow the yoke to fit within the back box Galvanised Construction Click Scolmore’s CMA20509 has been designed to work with the new GridPro modules that feature a convenient clip feature allowing for speedy installation of modules into the yoke frames required by larger front plates. The GridPro modules do not require a special Back Box and can be used with standard BS4662 back boxes. Click WA518 47mm Deep Kock Out Box for 18 Way Tier Plates Only This plate can also be used with the new 9 & 12 Gang Grid Pro front plates Dimensions 137mm x 197mm Scolmore Grid Pro 20AX 1 Way Switch Module – White – GM2001PW Click Scolmore’s GM2001PW features large filleted terminal cable entry holes and backed off captivated terminal screws for ease of assembly. The modules come with a screwdriver guide to ensure the screwdriver easily locates the terminal screw head to clamp the cable into position. All of the modules feature screw fittings that can be used to fit the modules to the 1-4 gang front plates without the need for a yoke. They also feature clips at the top and bottom of the module to allow for an easy installtion into larger front plates that do require the use of a yoke.