This product is a Factory Certified Accessory. These three words represent quality parts and accessories designed specifically for your appliance. Time tested engineering that meets our strict quality specifications, Package contains (1) Microwave Noise Filter Board, Tools Needed: Multi screwdriver and needle-nose pliers with insulated handles, 30-Day Return Policy, You will be redirected to Repair Clinic, which distributes Whirlpool® Factory Certified Parts.