Red Sea 100 Micron Felt Filter Bag – Fine Polish Sock for Reef Tanks

Designed to polish reef tank water with fine mechanical filtration, this 100-micron felt sock captures debris, uneaten food, and organics that cloud your system.

The tighter micron rating traps smaller particles than standard 225μm socks, making it ideal for systems with high flow and visibility goals. Reinforced stitching and ring-neck design allow easy installation into drain pipes or overflow holders.

Usage Instructions:

• Install the felt sock into your sump holder or overflow drain
• Rinse regularly with RO/DI water or replace based on bio-load
• Do not allow sock to clog fully—schedule cleanings to avoid overflow

Key Benefits:

• Polishes water by trapping finer particles and organic debris
• Improves light penetration and coral presentation
• Reusable, durable felt material for consistent filtration
• Fits 10cm (4 inch) ring holders, measures 26cm in length

Specifications:

• Micron Rating: 100μm
• Diameter: 10cm (4 inch)
• Length: 26cm (10.5 inches)
• Material: Felt
• Country of Origin: Germany

Keywords: red sea filter sock 100 micron, fine polish felt bag, reef sump filter, mechanical filtration sock, aquarium debris trap, felt polishing sock