2 Pack 50 Micron Felt Filter Socks - 4" Ring x 9" Long Short Fabric Filter Bags for Aquariums, Ponds, and Hydroponic Systems

Item Type: Felt Filter Sock Material: Made of Polypropylene （PP） Industry Size#3 - Diameter: 4", Length: 9". Available in 50Micron. Wide Application: aquarium, fish tank, beverages, bio diesel,chemical industry, etc

4 Inch Ring Felt Filter Sock with Plastic Ring,50 Micron Thick Felt Filter Bag.

Made of high quality polypropylene,thick felt material,strong and sturdy.

Felt filter socks provide excellent mechanical filtration, and regular replacement helps ensure clear water.

Excellent For Water, Oil, Biodiesel, Fuels, Anti weak acid, Strong alkali, Solvent, Organic Solvents & Microorganisms，Chemical Industry.

Package Included 2 Pcs/Pack Filter Sock