Radiator Price

The pipes in our house recently froze and our landlord had a plumbing company come in and fix the damage. The plumbers replaced two radiators, both obviously old and used. On the bill we were charged for: 1. 20 section, 4 pipe radiator, approx. 2 feet tall — $300 2. 11 section, 6 pipe radiator, approx. 2 feet tall — $165 We, the tenants, feel that these prices are a bit extreme for old radiators, and probably reflect the prices of what they would cost if new.Could you please let us know what the prices of these radiators would be used? Or, what they would be new? We need to get a general idea of the prices for thes items. Thanks