The Squeeze Duster is our most popular applicator because it's affordable and easy to use. Simply give it a few shakes allowing air into the duster, then squeeze the tube to release a small amount of DE. The Squeeze Duster allows you to control how much DE you want to apply. You can use this applicator to treat your home for ants, cockroaches, fleas or just about any regular household insect. This applicator comes empty, so be sure to bundle it with diatomaceous earth. Our refillable squeeze duster is great for storage and uses as needed. It is our most popular applicator because it's both affordable and easy to use.