- Replacement kit includes 1 sediment filter, 1 carbon block filter and 1 granular activated polishing (GAC) filter; for use with the PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System PUN4RO
- NSF/ANSI Standard 58 and CSA B483.1 certified to reduce multiple contaminants including lead, TDS and heavy metals, as well as particulates such as sand, rust and dirt
- Compatible with most other universal RO water filtration systems
- For best system performance, replace the filters every 6 months
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