The Tier1 S1-BB is a melt-blown polypropylene sediment filter with a 5-micron rating. This means it effectively captures sediment particles such as sand, silt, rust flakes, and dirt as small as 5 microns, protecting your plumbing, appliances, and downstream filters from sediment buildup. Its graded density construction traps larger particles on the outer layers and finer particles toward the core, maximizing dirt-holding capacity and extending filter life.

The Tier1 S1-BB whole house sediment filter is designed to last approximately 3 to 6 months, depending on your water quality and household usage. Homes with well water or high sediment levels may need to replace the filter more frequently, while municipal water users typically get the full 6 months. A noticeable drop in water pressure is the clearest sign that it's time for a replacement.

The Tier1 S1-BB measures approximately 9-3/4" in length and 4-1/2" in outer diameter, making it a standard "Big Blue" size cartridge. It is a direct comparable replacement for the Pentek S1-BB and fits most standard 10" Big Blue whole house filter housings, including Pentek, American Plumber, and other compatible 4.5" x 10" systems. Always confirm your housing accepts a Big Blue size cartridge before ordering.

The Tier1 S1-BB is manufactured from FDA-grade polypropylene materials tested to NSF/ANSI Standard 42 for material safety. It is specifically designed to reduce sediment, sand, silt, rust particles, dirt, and scale from your entire home's water supply. Note that this is a mechanical sediment filter — it does not remove chlorine, taste, odor, or chemical contaminants. For chemical reduction, pair it with a carbon block filter in a dual-stage whole house system.

The Tier1 S1-BB supports a robust flow rate of up to 8 gallons per minute (GPM), making it ideal for whole house applications where high water demand is needed across multiple fixtures simultaneously. It operates within a temperature range of 40°F to 125°F (4.4°C to 51.7°C) and is rated for cold water use. Installing this filter helps extend the life of water heaters, washing machines, dishwashers, and downstream filtration equipment by preventing sediment damage.