Pentek DGD-5005 Big Blue 10" x 4.5" 5 Micron Dual-Gradient Sediment Cartridge Pack of 2 — High-Capacity Pre-Filter

Pentek DGD-5005 Big Blue cartridges are 10" dual-gradient spun polypropylene sediment filters that deliver high-capacity particulate removal without adding taste, odor, or color.

These DGD Series cartridges are engineered from 100% pure polypropylene for chemical resistance and cleanliness, sized to fit standard 10-inch Big Blue housings. Their dual-gradient construction combines a coarse outer layer with finer inner density, increasing effective depth and dirt-holding capacity compared with conventional spun or string-wound cartridges. The result is reliable pre-filtration for whole-house systems, protecting plumbing, appliances, and downstream water treatment stages.

How does the dual-gradient design improve filtration performance?

The DGD structure uses progressively finer density from outside to center so larger particles are trapped in the outer layers while smaller particulates are captured deeper inside. This staged trapping prevents rapid surface clogging and spreads captured solids throughout the filter depth.

• Dual-gradient spun polypropylene for staged particle capture
• Up to three times the dirt-holding capacity of similar-size sediment cartridges
• Increased effective filter depth (about 233%) for longer service life

Will these cartridges fit my Big Blue whole-house filter housing?

Yes — the DGD-5005 cartridges are 10" tall by 4.5" diameter and are sized for Pentair/Pentek Big Blue housings or other heavy-duty 10" x 4.5" filter vessels. They can be used as direct replacements for most 10-inch sediment filter cartridges with the same dimensions.

• Standard 10" x 4.5" dimensions for broad compatibility
• Designed for high-flow pre-filtration in whole-house setups
• Sold as a pack of two to service dual-housing or provide a spare

How often should I replace the filter cartridges?

Replacement frequency depends on feed water quality and household water use; typical guidance is every six months or sooner if you notice reduced flow or visual discoloration. Monitoring pressure drop across the filter is the most reliable indicator—replace when pressure falls noticeably.

• Replace about every 6 months under average conditions
• Swap sooner if water pressure drops or water clarity declines
• Pack of 2 offers immediate backup or dual-stage configuration

What contaminants do these cartridges remove, and where are they best used?

The DGD-5005 is designed for sediment reduction—removing dirt, sand, silt and particulates down to 5 microns. They are ideal as a high-flow pre-filter to protect softeners, reverse osmosis units, water heaters, and household plumbing from abrasive or clogging particulates.

• Reduces visible sediment, sand, and rust particles
• Protects downstream treatment devices and appliances
• Suitable for residential, rural, municipal and light commercial use

Who is this for? Homeowners and facility managers who need a dependable, high-capacity sediment pre-filter will appreciate the Pentek DGD-5005. It’s especially useful where well water or older distribution lines introduce sand, silt or particulates, and for anyone wanting NSF-tested polypropylene construction that won’t add taste or odor to water. The pack-of-two format simplifies maintenance for single housings requiring frequent changes or for installations with two-stage sediment protection.