RoHS Compliant

Specifications:

Type: Square Box Extension Ring
Height: 4 Inch
Width: 4 Inch
Depth: 1-1/2 Inch
Capacity: 21 Cubic Inch
Number of Knockouts: 12
Knockout Size: (8) 1/2 Inch Side, (4) 3/4 Inch Side
Material: 16 Gauge Galvanized Welded Sheet Steel
Standard Package: 50
Approval: UL (Canada and US)