Grasshopper 620T grass catcher 

bought a used grass catcher for the 620T grasshopper. It needed a bit of straightening and welding, and a couple of joints freed up first. Also this unit was made for a 618. 618 and 620 are very similar but the 620 has a Donaldson air filter which is taller than the filter on the 618. I think it will be better 4" higher in multiple ways.