String Wound Filters - Wound Filter Cartridges | Champion Process
Shelco 40" x 2.5" 1 Micron Wound Polypropylene Sediment Cartridge
Tier1 Whole House Water Filter - 10 inch x 4.5 inch - (20 Micron) - Polypropylene String Wound Filter Cartridge to Reduce Sediment and Particles (6 Pack) - Walmart.com
String-wound filter cartridges - String-wound filter cartridges - Putsch® Group
String Wound Sediment Filter Cartridges - Pure Aqua, Inc.