Product Description
The Multiple TP428 is an essential component for any electrical installation. This square extension ring accommodates both half-inch and three-quarter-inch knockouts. It is made of durable steel and designed for various applications within commercial and institutional buildings.
- Capacity: 21.0 cubic inches
- Dimensions: four inches in width, one and a half inches in depth, and four inches in height
- Standard: UL listed for safety
Product Highlights
Designed for efficient installation and robust performance in wiring setups.
Product Information
Standard Information
- Brand: Multiple
- MPN: TP428










