Pentair DGD-2501, 155359-43 Dual Gradient Sediment Water Filter Cartridge
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Pentair DGD-2501, 155359-43 Dual Gradient Sediment Water Filter Cartridge

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DGD-2501 Filters Fast® FFDG-10BB-1 Replacement for Pentek DGD-2501

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8000 Gallons
Micron Rating
Media Type
Reduces Sediment
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Product Information

The Pentair DGD-2501, 155359-43 Dual Gradient Sediment Water Filter Cartridge is a replacement water filter cartridge that operates as both as a pre- and post-filter, eliminating the need for step-down filtration systems in your home. The outer layer of this Pentair water filter is a 25 micron pre-filter that takes out larger sediment, thus reducing the load on the 1 micron inner-layer post filter allowing for increased efficiency. The pure polypropylene construction of this 1 micron filter results in a resistance to chemicals and corrosion.


  • Brand: Pentair
  • Part Number(s): DGD-2501
  • Pack Size: 1
  • Filter Life: 8,000 Gallons
  • Temp Range: 40 - 145 F
  • Dimensions: 4 1/2" x 9 7/8"
  • Flow Rate: 10 GPM @ < 1 psi
  • 25 micron pre-filter/ 1 micron post filter
  • Reduces sand, dirt, silt, rust, and scale particles
  • For more information, View The Product Manual

How do you install the Pentair DGD-2501, 155359-43?

  1. Turn off water supply. Press red pressure-relief button (if present).
  2. Unscrew housing. Remove large o-ring, wipe clean and set aside.
  3. Discard used filter cartridge. Wash housing with dish soap and warm water using a nonabrasive sponge or cloth. Rinse thoroughly.
  4. Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly.
  5. Lubricate o-ring with clean silicone grease. Change o-ring if any damage cuts or degradation are present. Insert o-ring in groove.
  6. NOTE: This step is important to ensure a proper housing seal. Make certain the o-ring is seated level in the groove.
  7. Insert new filter cartridge.
  8. Screw housing onto the cap and hand-tighten. Do not over tighten. Make sure cap standpipe slips into cartridge.
  9. Turn on water supply. Press pressure-relief button (if present). Check for leaks before leaving installation.

How often should you replace the Pentair DGD-2501, 155359-43?

  • Changing your Pentair DGD-2501, 155359-43 is a very quick and easy process that should be done once every 8,000 gallons.

What contaminants does the Pentair DGD-2501, 155359-43 reduce?

  • The Pentair DGD-2501, 155359-43 reduces the following contaminants:

    • Sand
    • Dirt
    • Silt
    • Rust
    • Scale Particles

Compatible Parts:

The Pentek DGD-2501 is the correct replacement for the following part numbers:

Part Number
No results for {X}

Compatible Models:

The Pentek DGD-2501 is correct replacement for the following model numbers:

BrandModel NumberDescription
American Plumber HD-950 Housing
American Plumber W10-PR Housing
American Plumber W15-PR Housing
No results for {X}
prop 65 warning California Residents: Prop 65 Warning

Customer Reviews:

Total Reviews: 3 Average Rating: 4.7 / 5.0

Filtersfast Reviews on Trust Pilot external site
David Keating2024-05-07

its been arresting iron from my well and I also have a water conditioning system using iron ou salt bt still getting iron stains

Collected by

It does exactly what it claims.

Collected by
Howard Leichter2021-01-04

No comments.

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