ULTRATECH Filter Sock, Substances Filtered Heavy Metals, 7 in W x 4 in H x 9 ft L, Sock/Boom Profile Flat - 32V029|9454 - Grainger
Drain Filter Socks Ultratech®
4" Pre Sump Filter Sock Holder(Mount) and FREE Filter Socks 200 Micron 4 Inch Ring by 14 Inch Long Aquarium Felt Filter Bags|filter sock holder| filter socksump filter - AliExpress
Ultra-Filter Sock® Sorb 44 - UltraTech 9455
4 pcs Filter Socks 200 Micron 4 Inch or 7 inch Ring bag Aquarium reef tank|filter sock|200 micron filter sockmicron sock - AliExpress
CoralVue 7 x 16" Felt Aquarium Filter Socks with Plastic Ring | CoralVue
BioTek Marine Poly Ring Filter Socks | Aquarium Specialty
Hybrid Filter Sock Combines both Mesh and Felt | Reef Builders | The Reef and Saltwater Aquarium Blog
Baldwin - Sock-Style Lube Oil Filter Elements | Parker NA