Hi BS,
I got the Oxafert from Lawn Solutions Australia. It was $35 plus about $15 postage. I had 2 other mates buy. Bag each and we split the postage. It covered 100m2 if I remember correctly. Not a bad price for a one off treatment plus fertiliser. If you look around there may be better prices out there for it. It states on the bag suitable for warm season grasses, I believe Santa Ana has to be treated very carefully with it, most other warm season grasses are ok. I would check the label if you can find one online (had a quick look and couldn’t find it)
Cheers,
John