The Siemens 1 in. Load Center Filler Plates (5-Pack) are designed for use in electrical panels and distribution boards. These filler plates, with a height and width of 3 inches, are specifically made by the reputable brand Siemens. The model number ECQF3P ensures compatibility and quality for your electrical equipment needs. This product helps to fill in empty spaces within electrical panels, providing a neat and organized appearance while also allowing for easy access to components.