★★★★★
Water filter- one micron
Customer—January 14, 2026✓ Verified purchase
Excellent water filter! I use the one micron filter and change every 90 days. I have no sediment in the toilet tanks or faucets. Read more
Tier1
Tier1 5 Micron 20x4 5 Water Filter Spun Wound Polypropylene Whole House Sediment Pre-Filter Cartridge Replacement for Pentek
$71.89
About this item
- COMPATIBLE REPLACEMENT MODELS – Designed to fit standard 20 x 4.5 whole house filter housings and a replacement for Pentair DGD-5005-20, Liquatec SDF-45-2005, 155358-43, SDC-45-2005, AP810-2, P5-20BB, FP25B, FPMB-BB5-20, DEV910837, C155358-43, ClearChoice 84644, CMMF0520-45W1, MBGC-45200-05, SDG-45-2005, and VX05-20BB; suitable for most 4.5” x 20” water filter housings.
- 9 MICRON DEPTH SEDIMENT FILTRATION – Spun wound polypropylene construction captures particles throughout the cartridge depth, helping reduce rust, sand, silt, dirt, and scale commonly present in well water and municipal water systems.
- HIGH DIRT HOLDING CAPACITY DESIGN – The graded density structure traps larger particles on the outer layers while finer particles are captured deeper inside, helping support consistent flow and longer service life compared to basic surface filters.
- SERVICE LIFE VARIES BY WATER CONDITIONS – Replacement frequency depends on sediment levels, water quality, and micron rating; finer filters capture smaller particles more quickly, so monitoring flow or pressure changes helps determine when cartridge replacement is needed.
- IDEAL WHOLE HOUSE PRE-FILTER – Commonly used as a first-stage or main entry point sediment filter to help protect plumbing, appliances, water softeners, and carbon filters from sediment buildup and premature wear.
$71.89
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Product details
| Material | Polypropylene (PP) |
|---|---|
| Product Dimensions | 4.38"D x 4.38"W x 20"H |
| Item Weight | 7.72 Pounds |
| External Testing Certification | NSF |
| Product Benefits | Helps reduce sediment-related wear on plumbing and appliances ; Supports more consistent household water pressure over time ; Extends life of downstream filtration equipment ; Suitable for well water and city water pre-filtration ; Simple drop-in replacement for standard 20 x 4.5 whole house filter housings See more |
Technical specifications
| material | Polypropylene (PP) |
|---|---|
| product_dimensions | 4.38"D x 4.38"W x 20"H |
| item_weight | 7.72 pounds |
| external_testing_certification | NSF |
| product_benefits | Helps reduce sediment-related wear on plumbing and appliances ; Supports more consistent household water pressure over time ; Extends life of downstream filtration equipment ; Suitable for well water and city water pre-filtration ; Simple drop-in replacement for standard 20 x 4.5 whole house filter housings |
| brand | Tier1 |
| set_name | Pentek DGD-5005-20 |
| upc | 635510434276 |
| unit_count | 4 Count |
| compatible_water_purifier_models | 3M AP810-2 |
| number_of_items | 4 |
| manufacturer | Tier1 |
| item_model_number | P5_20BB_4_PACK |
| best_sellers_rank | #53,734 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #395 in Replacement Under-Sink Water Filters |
| date_first_available | March 10, 2016 |
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Customer reviews
4.7813 ratings
Customers say
Customers find the water filter to be of good quality, particularly as a pre-filter for well water, and appreciate that it fits perfectly in Big Blue filter housing.
★★★★★
Affordable option for a silty well
CareChris—July 10, 2025✓ Verified purchase
We have a well that gets silty occasionally. We were experiencing silty water this past weekend so we put one of these 5 micron filters in our Big Blue system and it cleared things right up until we can flush out the well. This is much cheaper than the hardware store or buying from the name brand manufacturer—like 40% cheaper and it’s doing the job well. It doesn’t seem to impede flow badly at all. We’ll move back to a 20 micron filter when things clear up! Read more
★★★★★
Excellent water filter
Jim—January 11, 2026✓ Verified purchase
Part of my whole house water filtration system. I replace it every few months and have been using these for a couple of years. Quite happy with the product. Read more
★★★★★
Fit Big Blue Filter Housing and does the job
2B-Incognito—November 6, 2025✓ Verified purchase
Fit perfectly my big blue filter and does a good job of filtering Read more
★★★★☆
Good filter, needs plastic catering end caps
Customer—June 13, 2025✓ Verified purchase
Works but wish these have plasic centering caps. Hard to keep centered when installing in my old big blue filter housing. The filter can fall sideways and housing head centering fingers just penatrate the filter ind center hole doesn't line up then allowing debris to pass by. Plaaic caps on the ends would prevent this from happening I think. Read more
★★★★★
Great filters
Palmer Products LLC—January 2, 2026✓ Verified purchase
These were great! I would buy them again. Read more
★★★★★
Seem to work well.
Placeholder—October 29, 2025✓ Verified purchase
These fit perfectly into my well filter housings, I use a pair in parallel mounted on the wellhouse wall. Change them each year. Read more
★★★★★
Espectacular
Super—December 11, 2025✓ Verified purchase
Súper tremenda calidad Read more
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