Hartz is a manufacturer of pet care products with a 91 year history. Product lines currently consists of Hartz flea & tick drops and collars, dog and cat treats, cat litter, wellness products, dog and cat toys and accessories, and products for birds, small animals and fish. At Hartz, we truly understand the important relationship between you and your pet, and pledge to provide products that make this relationship more rewarding and fun for both of you. We will develop and apply new ideas and technologies to give you and your pet the finest quality pet supplies Ñ so your pet will live a healthier, happier and longer life.