*	100 micron felt provides fine "polishing" of mature aquarium water
*	4" x 10.5" mechanical filter sock boasts high quality, reusable design
*	Great for use in saltwater or freshwater sump-style filter systems

Provide fine "polishing" of aquarium water that is already low in particulate matter with the Red Sea 100 Micron Felt Fine Polish Filter Socks. These 10.5" long socks have a 4" ring and are compatible with Red Sea’s REEFER and MAX-S aquariums or any standard 4"/10 cm filter bag holder. These high quality, felt filter bags are very effective at trapping particulate matter, uneaten food, and waste in their thick walls, helping to eliminate organic matter that produces ammonia and nitrates. They are also washable and reusable, making them a great cost-effective option for your salt or freshwater tank. Filter bag is compatible with Red Sea’s REEFER and MAX-S aquariums or any standard 4"/10 cm filter bag holder. Measures 4" (10 cm) in diameter and 10.5" (26 cm) in length.