SHT1/48 Aluminium blocks. 48 place for 0.2ml tubes, hole size 6.1mm diameter (9° taper), for use with Stuart block heaters. Manufactured from anodized aluminium and all with a separate hole to accommodate a thermometer if desired. All blocks with the exception of BH/15146 and BH/15148, have dimensions, (w x l x h) of 75x95x50mm and can be used in any combination