Your search for "AIR-ANT2547VG-N" revealed the following:
Cisco AIR-ANT2547VG-N Aironet 5GHz 7dBi Omnidirectional N-Type Antenna
SKU: NSH-6115
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 361.99
• 8 in stock
Call if you need more
NEW Cisco AIR-ANT2547VG-N Aironet 5GHz 7dBi Omnidirectional N-Type Antenna
SKU: NSN-2939
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 369.99
• 8 in stock
Call if you need more