Your search for "AIR-ANT2413P2M-N" revealed the following:
Cisco AIR-ANT2413P2M-N Directional 2.4-GHz 13-dBi Wireless Access Point Antenna
SKU: NSH-7731
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 184.99
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NEW Cisco AIR-ANT2413P2M-N Directional 2.4-GHz 13-dBi WAP Antenna
SKU: NSN-1080
Condition: New
Shipping: Overnight Options
Warranty: 365 days