The HRG466 SKU has a simple Versamow™ selective mulching lever that opens or closes a door at the back of the cutter deck. With the exit from the cutter deck open, the cuttings go straight into the 50-litre catcher as normal, when no mulching is required. With the mulching option switch on, the door is closed, the fine clippings drop down and settle around the grass roots, creating a natural fertiliser.