Suggested Retail:$28. Hydronix SWC-45-2001 Sediment String Wound Water Filter Cartridge Universal Whole House, Commercial 4.5 x 20 - 1 Micron. String-wound sediment filter for a water filtration system, 4.5" OD and an overall length of 20", Polypropylene fiber cord for resistance to most chemicals, dimensional stability, and sterilizable, Particle retention size of 1 Micron, Operating temperature range of 40 to 165 degrees F. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.