Pentek Dual Gradient 20″ x 4.5″ Melt-Blown Sediment Filter (25/1, 50/5, or 75/25 Micron)
BB/Full Flow Size 20″ × 4.5″ Sediment Cartridge
DGD Series cartridges are manufactured from 100% pure polypropylene and are sized for use in our Big Blue filter housings.
DGD Series cartridges are designed for purity and will not impart taste, odor, or color to the filtered liquid. Additionally, the polypropylene construction provides superior chemical resistance and is not prone to bacterial attack.
The DGD Series’ advanced design combines selective final filtration with appropriate pre-filtration to achieve up to three times the dirt-holding capacity of similar-sized sediment cartridges and even greater capacity than standard spun or string-wound cartridges. This performance enhancement is achieved by combining two separate gradient layers in one filter.
The larger diameter of the pre-filter reduces the particle load to the post filter, allowing it to operate at higher velocities. The adequate filter depth is increased to a full 233% of standard spun-polypropylene or string-wound filters. This increased depth provides very high particulate reduction efficiencies and added loading capacity.
The DGD Series cartridges’ unique design and performance characteristics make them an excellent choice for residential, rural, municipal, and commercial applications.
| Model | Maximum Dimensions | Nominal µm Rating* (Pre/Post Filter) | Initial ΔP @ Flow* |
|---|---|---|---|
| DGD-2501 | 10″ × 4-1/2″ | 25/1 µm | <1 psid @ 10.0 GPM |
| DGD-5005 | 10″ × 4-1/2″ | 50/5 µm | <1 psid @ 10.0 GPM |
| DGD-7525 | 10″ × 4-1/2″ | 75/25 µm | <1 psid @ 10.0 GPM |
| DGD-2501-20 | 20″ × 4-1/2″ | 25/1 µm | <1 psid @ 20.0 GPM |
| DGD-5005-20 | 20″ × 4-1/2″ | 50/5 µm | <1 psid @ 20.0 GPM |
| DGD-7525-20 | 20″ × 4-1/2″ | 75/25 µm | <1 psid @ 20.0 GPM |
* Based on manufacturer’s internal testing.
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