PreFilter Sock 4" (200 micron) Drawstring

The Eco System Pre-Filter Sock 4" Drawstring, 200 Micron is a versatile mechanical filtration solution designed to remove suspended debris and organic waste before it reaches your sump equipment, filtration media, or return pump. Its flexible drawstring design allows for easy installation on a wide range of sump configurations and plumbing outlets.

Ideal for both freshwater and marine aquariums, this filter sock effectively captures uneaten food, fish waste, decaying plant matter, detritus, dust, and other fine particles, helping to maintain cleaner, clearer water.

Features:

• 4" Drawstring Opening - Universal cinchable design for secure attachment to sump inlets, filter holders, or plumbing outlets.

• 200 Micron Filtration - Provides an excellent balance between particle removal and water flow, capturing waste without clogging excessively.

• Flexible Ring-Free Design - Easily adapts to non-standard sump setups and custom filtration systems.

• Suitable for Freshwater and Marine Aquariums - Perfect for use in sumps, refugiums, and filtration chambers.

• Length: 33cm

Regular replacement or cleaning of filter socks is essential for maintaining optimal water quality. By removing trapped organic waste before it decomposes, filter socks help minimise the accumulation of nitrates and phosphates that can contribute to unwanted algae growth and poor water conditions. Consistent maintenance also promotes clearer water and supports a healthier environment for fish, corals, and other aquatic plants.