I have a 588AT OMNI VII that is in EXCELLENT condition. It comes with the 300HZ and 500HZ Collins filters installed. The SERIAL NUMBER is 12C10037. It comes with Manual and power cord. it eill be shipped in the original box. THE PRICE is $2150 SHIPPED to the LOWER 48 STATES. Please reply off list to albertbrooks at att.net Thanks and 73 Al K9XR