PENTAIR/PENTEK, Felt, Sewn, Filter Bag - 4BE20|255063-75 - Grainger
PE 5,10,15,25,50,75,100 - P2S Polyester Felt Filter Bag - Packaged Systems Incorporated
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
Standard Bag Filters
1 Micron Welded Polyester Felt Filter Bag 7" x 16" Industrial Size #1 - Walmart.com