i'm desperately looking for one of these:

has anyone seen one of these before? or even in aus? i've been to the local LPG joint, and they get most custom made up here, hence big $$$, and also seeing as my weber isn't exactly a popular choise to put snorkels on.
i keep getting water all over the bloody RAMFLO air cleaner!

i've also been told to get an K&N oiled filter, as they...... sorta??? disperse water more, or something like that. like, water doesn't get through them as much.
thanks for any help.
Steve