Felt Filter Bag 1/100 Micron - 7 inch Ring 7 x 32 Inch Long - Liquid Water Filter Sock - 1 Pack (1 Micorn - 7" x 32"): Amazon.com: Industrial & Scientific
Polypropylene Felt Filter Bag - 1 Micron
1/2 (0.5) Micron 7" x 16" Polyester Felt Filter Bag PTFE Coated: Industrial Process Filter Bags: Amazon.com: Industrial & Scientific
Welded PTFE Coated PE Felt Filter Bag [PTFEP3PW] | DudaDiesel Biodiesel Supplies
225 Micron Felt Filter Sock - Red Sea - SaltwaterAquarium.com