In the past I've used TruGrit because they sell oddball sizes of pretty much anything. If you are buying in greater bulk, I bet there are plenty cheaper places. But if your grinder takes a 42" belt and you want just one of all the grits of Gators, TruGrit is the only place to go. No word on their customer service, I've just only ever gotten simple ordering, and prompt shipping in some TIGHT packaging.