Pentek Dgd-2501-20 Dual-Gradient Density Sediment Filter Cartridge, 25/1 Micron, 20" X 4.5" (item #155360-43)

Item #: 155360-43 (DGD-2501-20)
Dimensions: 20" x 4.5" (Big Blue)
Filtration: 25-micron pre-filter / 1-micron post-filter (dual-gradient)
Material: 100% spun polypropylene
Flow Rate: Up to 20 GPM
Pressure Drop: <1 psi @ 20 GPM
Temp Rating: 40°F–145°F (4.4°C–62.8°C)
Certification: NSF/ANSI Standard 42
Application: Large household (4+ occupants)
Compatible Housings: Pentek Big Blue, Culligan, American Plumber, Cuno AquaPure, Omni, Flotec, Honeywell, GE, and most other 20" heavy duty housings

Get high-performance whole house filtration with the Pentek DGD-2501-20 dual-gradient density cartridge (Item #155360-43). Sized for standard 20" Big Blue filter housings, this cartridge combines a 25-micron nominal outer pre-filter layer with an extra-fine 1-micron nominal inner post-filter layer in a single unit, delivering higher flow rates alongside excellent particulate reduction.

Manufactured from 100% pure polypropylene, the DGD-2501-20 achieves up to three times the dirt-holding capacity of comparably sized spun or string-wound sediment cartridges, thanks to an effective filter depth of 233% compared to standard designs. This makes it especially well-suited for large households (4+ occupants) and surface water supplies with higher sediment loads, while maintaining an initial pressure drop of less than 1 psi at 20 GPM.

Resistant to chemicals and bacteria, the DGD-2501-20 won't impart taste, odor, or color to filtered water, and is tested and certified by NSF International to NSF/ANSI Standard 42. It's a direct-fit replacement for Pentek, Culligan, American Plumber, Cuno AquaPure, Omni, Flotec, Honeywell, GE, and most other standard 20" x 4.5" heavy duty filter housings, effectively reducing sand, silt, rust, and scale particles throughout your home's water supply.