Harris Food Grade Diatomaceous Earth vs Harris Diatomaceous Earth Food Grade

Both are the same Harris food grade diatomaceous earth, mined in Nevada and OMRI Listed, so the powder itself is identical. The real difference is the package: A is a 10.5 lb bag with a powder duster included, B is a 2 lb bag with no applicator. Buy A if you have animals, a coop, a garden or a homestead and will use it steadily; buy B if you want a small amount to try or to keep in a kitchen or feed room. Owners of both report the same fine white powder and the same dusting behavior, and the duster on A is the feature people mention most.

• Choose the Harris 10.5 lb with duster if you treat coops, barns, garden beds or multiple animals and want one bag plus a controlled applicator.
• Choose the Harris 2 lb if you only need a small quantity for feed mixing or a first trial and already have a shaker or duster.