Just happened to be looking through the Jeffers web site for stuff for my horses and decided to look in their livestock section for poultry stuff. They sell 12oz, 3 lb and 10 lb containers of food grade DE.
I agree but many places do not sell food grade DE and buying on line usually means paying more for shipping for a 50lb bag than the DE costs. The price for the smaller amounts is not bad and the shipping should be affordable. I think if you order over $75 at Jeffers they do not charge for ground shipping. Just ordered some farrier tools and the shipping was free. I also like the fact that you can order smaller amounts. I get 50lb bags mainly because I use it for my horses and my chickens and I can get it locally.