Pentek 4" x 18" Polypropylene 25 Micron Filter Bag | R.C. Worst & Co.
25 Micron - 180 Micron Filter Bag 55*50cm Fine Mesh Brew Hop Bags Wine Jam Beer Making Home Brewing Food Grade Bar Tools - Bar Accessories - AliExpress
PES25P1SH Polyester Felt Bag Filter with Carbon Steel Ring - 25 Micron 7-1/16 Inch (D) x 16-1/2 Inch (L) - Filters.com