Trigger for disk with range

[bundaburg]

Hi
Im trying to implement a trigger based on hostname, capacity and free space of disk.

For example disk total size between 150GB and 600GB client wants and alert if a "FIL" named server goes below 20gb free space.
I have tried

({Template OS Windows Physical:vfs.fs.size[{#FSNAME},total].last()}>=150G and
{Template OS Windows Physical:vfs.fs.size[{#FSNAME},total].last()}<=600G and
{Template OS Windows Physical:vfs.fs.size[{#FSNAME},free].last()}<=20G and
{Template OS Windows Physical:system.uname.iregexp(FIL)}=1)

Zabbix seems to ignore the range of 150-600. Is there a way to limit this to disks in this size range?

Thanks!