






💧 Elevate your water game with the Big Blue filter that keeps your flow flawless and your home healthy.
The Pentair Pentek DGD-5005 Big Blue Water Filter is a 10-inch dual-gradient density sediment cartridge designed for whole-house filtration. Made from 100% pure polypropylene, it removes dirt, sand, silt, and particulates down to 5 microns without affecting water taste or odor. Certified to NSF/ANSI Standard 42, it offers 3X the dirt holding capacity of similar filters and fits all standard 10" Big Blue housings, making it ideal for residential and commercial use. Replace every 6 months for optimal performance.




| Brand | Pentek |
| External Testing Certification | ANSI |
| Global Trade Identification Number | 50051678357434 |
| Material | Polypropylene (PP) |
| Product Benefits | Improves water purity by effectively reducing sand, dirt, and rust particles with a long-lasting dual-gradient density filter. Product Benefits Improves water purity by effectively reducing sand, dirt, and rust particles with a long-lasting dual-gradient density filter. See more |
| Product Dimensions | 4.5"D x 4.5"W x 10"H |
R**E
Works great
I rarely leave reviews, but this one indicates a great product. I’ve tried various filters, from cheap to expensive, and this one surpasses expectations. My well water is high in iron (reddish clay), but this filter works wonders. Highly recommended, though the price is on the expensive side.
V**S
Great Buy
This is the go-to water softener filter we use every month for bad water in our neighborhood. Works great with sediment removal. Helps extend life of tank. Got in on subscription and keep six month supply on hand.
V**E
Culligan water filter replacement
Just what I needed, filters great
W**.
Water Filter
Works fine. I just wish it costs what it once did.
L**.
Excellent Value, Easy Install, Works Great
Very easy to install in our whole house water filter! We had a considerable improvement in water flow and have signed up for 6 month shipments so we never forget to change it!
R**E
These Filters are GREAT at Removing Well Water Sediment
I’ve been using these “dual gradient” whole house water filters for more than 15 years to remove any sediment from our well water. The benefit of a dual gradient filter is they act like two separate filters – the first layers remove larger sediment (e.g. silt, sand) down to 25 microns and the inner layer removes tiny particles –down to 5 microns. These filters do not remove chemicals or improve taste – they simply remove particles/sediment from the water. When our well was first dug, I had to change filters every 2~3 months. Within a year, that slowed to 4~6 months, now after 20 years – I typically change the filter annually, or sooner if I notice a pressure drop. I also have a 3-stage filter system under the kitchen sink for drinking/cooking/ice-cube water which filters to 1 micron and removes bacteria and viruses. Note: The more sediment that is in your water, the more often you will need to change your filter. Some reviewers complained that their filters clogged after only a few months… gee, that is what a filter is supposed to do. Pentair does make another model (DGD-2501) dual gradient filter with a 25 micron prefilter and 1 micron final filter. If I didn’t have separate drinking water filtration system, I would use the DGD-2501 filter – knowing that I would need to change it more often. I highly recommend the Pentair Pentek family of water filters!
R**M
Recommended
This was recommended as a replacement for our whole house water system. Works as needed.
L**S
Great water system filter!
I couldn't find filter type purchased when having new whole-house water system originally installed. Found this filter which appeared to be similar with same dimensions and much cheaper so purchased it. Had installed in place of old dirty filter and works wonderfully well so will order more when needing to replace filter on regular basis per directions. Price is right and so is quality!
Trustpilot
4 days ago
2 weeks ago