Check the listing for details. Bluonics 4-pack 4.5" x 20" String-wound Yarn Sediment (20 Micron). Condition: New. Listed at 87.00 USD. Pure Water Clean Air in Every House Give us a call Send us a message Our Store Seller Profile Feedback Save this seller Contact Bluonics 4-pack 4.5" x 20" String-wound Yarn Sediment (20 Micron) Description 20 Micron String Wound Sediment Filter. For particles such as sand, dirt, silt, and rust. To remove these particles allows better performance for the following Carbon Block filter. The String Wound Sediment filter offers a longer cartridge life, higher flow rate, greater dirt holding capacity, lower pressure drop, and more efficiency when compared to other sediment filters. These can be used for residential and commercial applications. Standard size 4.5 x 20" Replacement filter set for eBay item: 099461797697 and 099461797710 Payment Shipping Give us a call Send us a message