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Pentek - DGD Series 20" x 4.5" Big Blue Dual-Gradient Density Polypropylene Sediment Filter

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Pentek - DGD Series 20" x 4.5" Big Blue Dual-Gradient Density Polypropylene Sediment Filter

The Pentek DGD Series 20" x 4.5" dual-gradient sediment filter delivers up to three times the dirt-holding capacity of standard spun or wound cartridges by combining two gradient density layers in a single 100% pure polypropylene construction. Available in three dual-gradient configurations (25/1, 50/5, and 75/25 micron), it fits all standard Big Blue 20" housings and handles flow rates up to 20 GPM with minimal pressure drop.
SPECIFICATIONS

Pentek DGD-2501 Filter Specifications

Dimensions
20" × 4.5"
Fits Big Blue housings
Micron Rating
25 / 1 µm
Dual-gradient layers
Flow Rate
20 GPM
Maximum rated flow
Pressure Drop
1 PSI
At 20 GPM flow
Construction
100% PP
Meltblown polypropylene
Filter Depth
233%
vs. standard cartridges
TECHNICAL DETAILS

DGD Series Model Comparison

Model Number Pre-Filter Micron Post-Filter Micron Pressure Drop
DGD-2501 25 micron 1 micron 1 PSI @ 20 GPM
DGD-5005 50 micron 5 micron 1 PSI @ 20 GPM
DGD-7525 75 micron 25 micron 1 PSI @ 20 GPM
Material: 100% pure polypropylene meltblown construction
Chemical Resistance: Superior compatibility, not prone to bacterial attack
Purity: Will not impart taste, odor, or color to filtered water
Effective Depth: 233% of standard spun or string-wound filters
COMPATIBILITY & APPLICATIONS

Designed for Big Blue Whole-House Systems

The Pentek DGD Series filters are engineered for use in all standard 20" Big Blue housings with 4.5" diameter openings. The dual-gradient design makes these cartridges ideal for whole-house sediment filtration in residential, rural, municipal, and commercial applications where high particulate loads require extended service life. The outer 25-micron gradient layer captures larger particles and reduces the load on the inner 1-micron layer, allowing the filter to maintain consistent flow rates while achieving fine filtration. Compatible with potable water systems, well water applications, and any installation requiring sediment reduction down to 1 micron without sacrificing capacity or flow performance.

💧 Pro Tip: The DGD-2501 (25/1 micron) is the workhorse for well water and municipal pre-filtration. For lighter sediment loads or applications requiring only coarse filtration, the DGD-7525 (75/25 micron) extends service intervals significantly while still providing effective protection for downstream equipment.
The Pentek DGD Series 20" x 4.5" dual-gradient sediment filter delivers up to three times the dirt-holding capacity of standard spun or wound cartridges by combining two gradient density layers in a single 100% pure polypropylene construction. Available in three dual-gradient configurations (25/1, 50/5, and 75/25 micron), it fits all standard Big Blue 20" housings and handles flow rates up to 20 GPM with minimal pressure drop.
SPECIFICATIONS

Pentek DGD-2501 Filter Specifications

Dimensions
20" × 4.5"
Fits Big Blue housings
Micron Rating
25 / 1 µm
Dual-gradient layers
Flow Rate
20 GPM
Maximum rated flow
Pressure Drop
1 PSI
At 20 GPM flow
Construction
100% PP
Meltblown polypropylene
Filter Depth
233%
vs. standard cartridges
TECHNICAL DETAILS

DGD Series Model Comparison

Model Number Pre-Filter Micron Post-Filter Micron Pressure Drop
DGD-2501 25 micron 1 micron 1 PSI @ 20 GPM
DGD-5005 50 micron 5 micron 1 PSI @ 20 GPM
DGD-7525 75 micron 25 micron 1 PSI @ 20 GPM
Material: 100% pure polypropylene meltblown construction
Chemical Resistance: Superior compatibility, not prone to bacterial attack
Purity: Will not impart taste, odor, or color to filtered water
Effective Depth: 233% of standard spun or string-wound filters
COMPATIBILITY & APPLICATIONS

Designed for Big Blue Whole-House Systems

The Pentek DGD Series filters are engineered for use in all standard 20" Big Blue housings with 4.5" diameter openings. The dual-gradient design makes these cartridges ideal for whole-house sediment filtration in residential, rural, municipal, and commercial applications where high particulate loads require extended service life. The outer 25-micron gradient layer captures larger particles and reduces the load on the inner 1-micron layer, allowing the filter to maintain consistent flow rates while achieving fine filtration. Compatible with potable water systems, well water applications, and any installation requiring sediment reduction down to 1 micron without sacrificing capacity or flow performance.

💧 Pro Tip: The DGD-2501 (25/1 micron) is the workhorse for well water and municipal pre-filtration. For lighter sediment loads or applications requiring only coarse filtration, the DGD-7525 (75/25 micron) extends service intervals significantly while still providing effective protection for downstream equipment.
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From $15.98

Original: $45.65

-65%
Pentek - DGD Series 20" x 4.5" Big Blue Dual-Gradient Density Polypropylene Sediment Filter—

$45.65

$15.98

Description

The Pentek DGD Series 20" x 4.5" dual-gradient sediment filter delivers up to three times the dirt-holding capacity of standard spun or wound cartridges by combining two gradient density layers in a single 100% pure polypropylene construction. Available in three dual-gradient configurations (25/1, 50/5, and 75/25 micron), it fits all standard Big Blue 20" housings and handles flow rates up to 20 GPM with minimal pressure drop.
SPECIFICATIONS

Pentek DGD-2501 Filter Specifications

Dimensions
20" × 4.5"
Fits Big Blue housings
Micron Rating
25 / 1 µm
Dual-gradient layers
Flow Rate
20 GPM
Maximum rated flow
Pressure Drop
1 PSI
At 20 GPM flow
Construction
100% PP
Meltblown polypropylene
Filter Depth
233%
vs. standard cartridges
TECHNICAL DETAILS

DGD Series Model Comparison

Model Number Pre-Filter Micron Post-Filter Micron Pressure Drop
DGD-2501 25 micron 1 micron 1 PSI @ 20 GPM
DGD-5005 50 micron 5 micron 1 PSI @ 20 GPM
DGD-7525 75 micron 25 micron 1 PSI @ 20 GPM
Material: 100% pure polypropylene meltblown construction
Chemical Resistance: Superior compatibility, not prone to bacterial attack
Purity: Will not impart taste, odor, or color to filtered water
Effective Depth: 233% of standard spun or string-wound filters
COMPATIBILITY & APPLICATIONS

Designed for Big Blue Whole-House Systems

The Pentek DGD Series filters are engineered for use in all standard 20" Big Blue housings with 4.5" diameter openings. The dual-gradient design makes these cartridges ideal for whole-house sediment filtration in residential, rural, municipal, and commercial applications where high particulate loads require extended service life. The outer 25-micron gradient layer captures larger particles and reduces the load on the inner 1-micron layer, allowing the filter to maintain consistent flow rates while achieving fine filtration. Compatible with potable water systems, well water applications, and any installation requiring sediment reduction down to 1 micron without sacrificing capacity or flow performance.

💧 Pro Tip: The DGD-2501 (25/1 micron) is the workhorse for well water and municipal pre-filtration. For lighter sediment loads or applications requiring only coarse filtration, the DGD-7525 (75/25 micron) extends service intervals significantly while still providing effective protection for downstream equipment.
Pentek - DGD Series 20" x 4.5" Big Blue Dual-Gradient Density Polypropylene Sediment Filter | Isopure Water