I was psyched to have found this item in the bargain bin in the online store- a 5-gallon size 190u bag made with a thicker, "less flexible" fabric. And it was $25.00 instead of the normal $48.00 price tag for a single "replacement" bag. Became available in February of this year, but I had not noticed it.
Ordered it as soon as I saw it.
I am going to be using this along with a 220u bag to seperate the extraction into two runs- material is run through the 220u , and 190u workbags in one bucket, than that water is run through a second series of bags that will start with an additional 190u bag of "normal" fabric.
To the admins: Thanks for making this product available. Review to come in the future.