This is what we used, with and without a filter

ConvaTec Natura+ Two Piece Closed End Ostomy Pouch, Without Filter,

I am not sure I am allowed to post a link. You can google it. The disposable pouch snaps onto the barrier and gets removed 2-3 times/day. Then a new pouch is snapped on.

The ileostomy page has a barrier for this system but the pouches look like they are all drainable rather than disposable. I would call the company. They have nurses and staff who are very very helpful.