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The SpiroPure SP-BH520 is a replacement refrigerator water filter for the Swift Green Filter SGF-BO52 filter cartridge. A high quality, alternative replacement refrigerator water filter that is compatible with refrigerators that currently use the Bosch 3M CS-52 filter cartridge. Tested and certified to meet NSF/ANSI Standard 42 to reduce chlorine for significantly better tasting and smelling water, as well as NSF/ANSI 372 for lead-free material so you can be assured of its quality.
SpiroPure filters have a 30-day money back guarantee. If you do not like the performance of your filter, you can send it back within 30 days of purchase and we will pay for the return shipping and issue a full refund.