Home / Aero 400 Center Locking, A4L Zoom Aero 400 Center Locking, A4L Be the first to review this product SKU: A4L The locking Aero 400 Center, A4L. This center piece fits Aero 400 flanges. Each cap comes with two keys. For approximate dimensions see pictures. Newton P/N: CA-AA-013 $174.00 Qty: Add to Cart | Add to Compare Product Description Product's Review Product Tags Product Description Details Center Aero 400- Center only, locking 3" diameter, 1.5" depth Newton P/N: CA-AA-013 Product's Review Write Your Own Review Only registered users can write reviews. Please, log in or register Product Tags Add Your Tags: Add Tags Use spaces to separate tags. Use single quotes (') for phrases. CMS tab