Pentek 10-Inch Big Blue Pleated Sediment Filter Pack of 8 — 50‑Micron Rinseable Polyester, High Capacity

Pentek R50-BB Big Blue is a 10-inch pleated sediment cartridge (50-micron) designed to capture dirt, sand, silt and rust while offering rinsable, reusable polyester media for longer life.

This pack of eight heavy-duty Pleated Sediment Filters is built for whole-house Big Blue housings and other heavy-duty filter systems. Each cartridge uses durable non-woven polyester pleats wrapped around a polypropylene core, delivering high dirt-holding capacity without creating a large pressure drop. The larger "Big Blue" format provides more filtering surface so the cartridges last longer between rinses or replacements compared with standard 10-inch sediment filters.

How does this filter reduce sediment and protect plumbing?

The R50-BB captures particulate down to a nominal 50 microns using densely pleated polyester media. Its pleated design increases surface area for trapping more debris and keeps solids from reaching downstream equipment and fixtures. The sonically welded overlap seam helps prevent bypass and maintains consistent filtration across the cartridge.

• Nominal 50-micron rating for dirt, sand, silt and rust reduction
• Over 16 square feet of pleated polyester media for high capacity
• Sonic seam minimizes internal bypass for consistent performance
• Polypropylene core provides structural strength under flow

Will these fit my whole-house Big Blue housing?

Yes — each filter measures approximately 10 inches tall by 4.5 inches diameter, the standard size for Big Blue and other heavy-duty housings. They are designed as drop-in replacements for most 10-inch pleated or sediment cartridges. Confirm your housing accepts 4.5" diameter cartridges to ensure compatibility.

• Dimensions: 10" height x 4.5" diameter to match Big Blue housings
• Direct replacement for many 10-inch pleated/sediment cartridges
• Works in single- and multi-cartridge whole-house systems

How long do these cartridges last and can they be reused?

The expanded pleated surface area slows clogging so each cartridge stays effective longer than standard 10-inch filters. When flow rate or water quality declines, simple rinsing can restore performance because the polyester media is washable. Replace cartridges when rinsing no longer restores acceptable flow or when physical wear is evident.

• More than 16 sq. ft. of media for extended service life
• Rinseable polyester material to extend usable life between replacements
• Replace when pressure drop rises or water clarity worsens

What operating conditions and flow performance should I expect?

The R50-BB is rated for typical household hot water temperatures up to 125°F and maintains a low pressure drop for strong flow. At 10 gallons per minute, pressure loss stays below about 1 psi, minimizing impact on household water pressure. It’s intended for sediment removal rather than chemical or microbiological treatment.

• Maximum recommended temperature: 125°F
• Low pressure drop: under 1 psi at 10 gpm for steady flow
• Designed for mechanical particulate filtration, not for chemical removal

Who this is for: homeowners, landlords, and maintenance professionals with Big Blue or heavy-duty whole-house housings who need reliable sediment protection for appliances, water-using fixtures, and downstream filter stages. This Pack of 8 is appropriate for multi-home servicing, seasonal replacement inventories, or properties with high sediment loads that require frequent cartridge changes or rinsing to maintain flow and water clarity.