Shop / Flea Collars / Sergeant's Guardian PRO Flea & Tick Collar for Cats Sergeant's Pet Care Sergeant's Guardian PRO Flea & Tick Collar for Cats Single $7.99 Sorry, this product is currently out of stock. Information Ingredients Looking for an effective and affordable way to protect your cats from fleas and ticks? Get that protection from Sergeants Guardian PRO Flea and Tick Collar for Cats.Why We Love It: Kills and repels fleas, ticks, flea eggs, and flea larvae Prevents flea eggs from hatching for up to 7 months Water Resistant About Sergeant's GuardianWith 150 year history, Sergeants Guardian and Sergeants Guardian Pro provide effective flea and tick solutions at an affordable price. Tetrachlorvinphos, (S)-Methoprene Customers also liked Customer Reviews