RPHONGHONG 10 Pack 4 Inch Ring Filter Socks 150 Micorn, 3D Honeycomb Aquarium Felt Bags Fish Tanks Strainers Sock Accessories Use in Sumps/Overflows

Package Includes: 10 pack 3D honeycomb aquarium filter socks, 4 inch(W) x 9.8 inch(L)/ 10 cm x 25 cm. Ready to use in most standard 4" overflow and sump fittings. 3D Honeycomb Design: Filter sock advanced 3D honeycomb felt structure increases surface area and promotes uniform water flow, trapping fine particulates more efficiently while reducing clogging and extending service intervals. 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. Designed for quick replacement during routine maintenance so you can keep filtration running smoothly. Easy to Clean: The aquarium filter bags are easy to use and washable, just need to invert and rinse the bag, get all the residue off, easier to clean than felt type filter bag, sturdy can be reused numerous time, it is ideal gifts for fish hobbyist; replace when visibly worn. Widely Used: Aquarium felt socks Versatile for freshwater and saltwater setups—ideal for home aquariums, reef tanks, sumps, overflows, refugiums, ponds and small-scale aquaculture. Compact, reliable filtration for hobbyists and professionals alike.