
Louver Flange Kit, Material Aluminum, Rough Opening Height 48 in, Rough Opening Width 48 in, Overall Height 1 1/2 in, Compatible with Grainger Part Number 5NKJ1, 5NKK0, Includes Mounting Hardware, Overall Width 50 1/2 in, Overall Length 50 1/2 in
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Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.