Upgrade Heavy Tonearm weight for Rega tonearms with standard tonearm counterweight. You will need this if installing heavier cartridges on your Rega tonearm. This Heavy Tungsten Tonearm Counterweight (120g) is heavier than the Tungsten Tonearm counterweight (100g).
Note that this is compatible with Rega tonearms that have smooth rather than screw-on counterweights. Compatible examples include the Planar 3 and Planar 6.