3D Honeycomb Design: this filter sock is designed in the shape of 3D honeycomb, with many small nests to divert water, permeable, non clogging and flexible, and you can also flip it over to clean easily regularly
Practical Function: the 150μm saltwater aquarium filter sock can trap debris to help reduce the amount of ammonia producing objects in the aquarium, providing a healthy environment for aquarium
Reusable and Durable: this aquarium sump filter sock is made of PP material, which is sturdy and strong enough that it is not easy to break or tear, and it is available for long term use
Two sizes available, 4 inch or 7 inch.
Specifications: 4 inch Size: 10.5 x 30 cm 7 inch Size: 17.8 x 30cm
