Check the listing for details. Zodiac Jandy IQ900/IQ20/IQ30 iAqualink Replacement ANTENNA ONLY For Repair (C30). Condition: For parts or not working. Listed at 85.00 USD. this is an ad for JUST the antenna on any of the following transceiver module Jandy Zodiac IQ900 IQ20 or IQ30 these antennas are all the same part and the reason they are useful is if u had a broken antenna you can just replace the antenna it is very simple I can explain how if you do not know. this is a semi advanced technique that I have done many times. why buy a new module if u could just replace the antenna?this is an ad for JUST the antenna on any of the following transceiver module Jandy Zodiac IQ900 IQ20 or IQ30 these antennas are all the same part and the reason they are useful is if u had a broken antenna you can just replace the antenna it is very simple I can explain how if you do not know. this is a semi advanced technique that I have done many times. why buy a new module if u could just replace the antenna?