Try this:
df[df['RSD_TYPE'].str.contains("AQ5")]['FILTER LIST']
Example:
In [3]: df
Out[3]:
RSD_TYPE FILTER LIST
0 AQ500 [N/A, Z mean, SNR mean, Dir mean]
1 Triton [wipe mean, Z mean, Avail mean, Dir mean]
2 Windcube [N/A, W mean, Q mean, Dir mean]
3 Zephir [Rain mean, W mean, Packets, dir mean]
[4 rows x 2 columns]
In [4]: df[df['RSD_TYPE'].str.contains("AQ5")]
Out[4]:
RSD_TYPE FILTER LIST
0 AQ500 [N/A, Z mean, SNR mean, Dir mean]
[1 rows x 2 columns]
In [5]: df[df['RSD_TYPE'].str.contains("AQ5")]['FILTER LIST']
Out[5]:
0 [N/A, Z mean, SNR mean, Dir mean]
Name: FILTER LIST, dtype: object
