MKB Compost Filter Socks
The original compost filter sock and the full family of Soxx media options
Filter socks are a mesh tube filled with engineered media that filters runoff while trapping sediment on site. As the home of the original compost filter sock, MKB offers a full range of media types so you can match filtration performance, longevity, and cost to the conditions on your jobsite.

Key features & benefits
Filters, Not Just Dams
Runoff passes through the media, so water keeps moving while sediment stays behind.
Multiple Media Options
Compost, rice hull, rock, and switchgrass fills for different site conditions.
No Trenching Required
Lays on the surface and conforms to grade, protecting existing vegetation.
Research Backed
The original compost filter sock, supported by decades of published performance data.
Products in this line

Filtrexx SiltSoxx, the original compost filter sock, trusted for sediment control on jobsites nationwide.

Filled with rice hull media, the newest and lightest filter sock for your BMP toolbox.

Rock-filled sock for inlet and channel applications demanding extra weight and stability.

Switchgrass media option delivering sustainable filtration performance.

