BNATURVET 978084 No Flea Carpet Crystal Powder for Pets, 2-Pound ReviewbP PP NATURVET 978084 No Flea Carpet Crystal Powder for Pets, 2-Pound PNaturVet No Flea Carpet Crystals is a dry crystal powder that works on carpet and under cushions of upholstered furniture to kill fleas.PDo not apply to pet.PThis package should last the average home approx. 1 year.PCovers approx. 1,000 Sq. Ft.