As far as I know you need to use the plastic one that comes with the unit, and yes they can crack. If it does crack it will not leak,but you will lose pressure and need to change it.
If you are just starting out, why not mix small amounts and use Whatman syringe filters? They are easy to use and inexpensive, plus making small batches would let you experiment with mg/ml concentration and different percentages of BA and BB. Note: 20% BB is SO unnecessary.
Just a suggestion.