The MKIII Titan Tray Interlocking Block is used to bind the internal planks of the MKIII Titan Tray together when mounted with Ridge Mount or Low Mount. The previous MKII Interlocking Blocks are not compatible and should not be used.
When securing the planks ensure that 3 interlocking blocks are used (1200, 1500, 1800) and 4 blocks for 2m tray (one for each space).