RICHHAOLIN 2 Pcs 4 inch 150 Micron Honeycomb Filter Socks Aquarium Felt Sump Use in Freshwater Saltwater Ponds

PACKAGE INCLUDES: You will receive 2pcs aquarium felt socks, white. The quantity is enough for your daily use and replacement, you can also share with family and friends. MATERIAL: These sump filter socks are made of high-quality durable polyester for a long life. Coupled with the sock's sturdy construction and heavy-duty stitching, the double buff blessing makes it even more durable. FUNCTION FEATURES: Aquarium filter socks are designed to filter impurities in the water, keep the aquarium water clear and clean, and provide a comfortable living environment for the creatures in the aquarium. EASY TO USE: A 4-inch diameter plastic ring makes these sump filter socks easy to fix in the water inlet or outlet and fit most sump holders. WIDELY USED: The 4 inch 150 micron honeycomb filter socks are designed to divert water, and to help reduce the amount of ammonia-producing organic matter in aquariums, while also helping to prevent damage to aquarium equipment by large and small objects such as sand and coral.