4.5" x 20" Sediment and Carbon Block Replacement Filters (4 Pack)

Maintain cleaner, better-tasting water throughout your home with this convenient 4-pack of 4.5" x 20" replacement filters, featuring two sediment filter and two carbon block (CTO) filter. Designed for use in standard Big Blue®-style housings, this combination provides powerful two-stage filtration to reduce sediment, chlorine, and unwanted tastes and odors. Ideal for whole-house systems or large-capacity filtration setups, this filter pair works together to protect plumbing, appliances, and downstream filtration equipment while delivering clearer, fresher water from every tap.

• Precision 5-Micron Filtration – Effectively captures sand, silt, rust, scale, and fine sediment to improve water clarity.
• Effective Chlorine Reduction – Targets chlorine to improve water taste and eliminate chemical odors.
• Protects Plumbing & Appliances – Helps extend the life of water heaters, softeners, RO systems, and fixtures.
• Compatible with Big Blue® Housings – Fits most standard 4.5" x 20" whole-house filter housings.
• Improves Downstream Filter Efficiency – Reduces sediment load to enhance performance of RO membranes.
• 4-Pack Value – Convenient multi-pack ensures you have replacements ready when needed.