2-1/8 Inch Electrical Box is Pre-Mounted and Centered on Bracket and is Fully Adjustable up to 8 Inch in Either Direction; Electrical Box has (3) Open Knockouts for Quick Installation; Each Kit Includes Screws to Mount Fan, nVent Caddy Speed Link to Support From Building Structure and (2) Fixture Mount Stabilizer Clips (FMSBC1) to Stabilize Ceiling Tiles

Specifications:

Fastener Type: 24 Inch Span
Load Capacity: 70 Lb
Material: Steel
Standard Package: 1 per Box
Used On: 2-1/8 Inch Electrical Box
Approval: UL (Canada and US)