4" NOSOK Filter Sock Replacement Kit

Replace Your 4" Filter Sock with Something Better

• Easier to Clean Than a Filter Sock
• More Effective Than a Filter Cup
• Less Complicated Than a Fleece Roller

Nobody loves washing aquarium filter socks and fleece rollers can be complicated. NOSOK is the filter sock replacement kit that is easier to clean than a filter sock, more effective and efficient than a filter cup, and less complicated than a fleece roller.

Three Setup Options

Just the Filter Screen
Use the included heavy-duty 255-micron mesh filter screen to filter out most free-floating particles. The screen unrolls flat for easy cleaning, so you can use the filter screen time and time again without any waste.

Just Filter Floss
Wrap filter floss around the filter core to capture larger free-floating particles. Simply discard and replace the floss when it becomes dirty for a hassle-free mechanical filtration solution that works just as well as a traditional filter sock.

Filter Floss with Filter Screen
A comprehensive mechanical filtration solution. Use the filter floss as the first line of defense with the mesh filter screen as a backup layer to catch any particles that might have made it past the floss.

Specifications

Overall Dimensions

• Mounting Diameter: 3.4875" to 4.25" with included adapter
• Overall Length: 6" from mounting point

Compatibility

• Red Sea Reefer Filter Sock holder compatible
• Minimum Filter Sock Hole Size: 3.5"
• Maximum Filter Sock Hole Size: 4.18"

Nylon Filter Screen

• Flat size 10.625" x 4.75" (~50 square inches of filtration surface)
• 255-micron mesh

What's Included?

4" NOSOK Kit

• Filter Cage
• Filter Core
• Ring Adapter
• Nylon Filter Screen Insert

Note: Filter floss not included