Bubble Magus Replacement Roll Filter, Large

The filter roller works great! I have the Large on my 340 gallon mixed reef display. The only downside is I'm going through 1 roll every three weeks. I was hoping to get it to last 4-6 weeks. I wish there were either a larger micron - say 100 micron option that might last longer but still offer filtration. Or a bulk purchase option that's less than $24.00 a piece. 30 rolls is too many and not something I'm going to spend $600 on. Yet, at 17 a year * $23.95 I'll be spending $400 a year just on rolls of replacement paper. There needs to be a cheaper option for this to be practical in the hobby.

Perfect fit. Works well.

The filter roll that comes with the Bubble Magus works fine and looks thick. This replacement roll is very thin and I'm already half way through a roll when I would have just started when compared to the original.