SimPure Whole House Water Filter Housing (DB20P), 20" x 4.5" Sediment Carbon Filter Universal Housing, Pre-Filtration System for Well and City Water, 1" NPT Port, Pressure Release
Condition: New
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Availability:
20 left in stock
Arrives
Monday, Jun 8
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Size: 1 Count (Pack of 1)
Style: System (20 Inch x 4.5 Inch)
Features
- PREMIUM QUALITY: Tested against NSF standards. The whole house water filter housing is made of reinforced polypropylene for strength and resistance to chemicals. Food grade material makes all filtered water is reliable. If you need a more efficient whole-house water purification solution, choose our latest ultimate water purification solution: DB20P-3
- UPGRADE DESIGN: Compared to other inline water filter housing for leakage complaints, SimPure's 20" x 4.5" filter housing thicken and raises the threaded holes, making sure no water leaks from the mounting hole after long-term use
- EASY INSTALLATION: The BB filter housing comes with all tools required for installation, including a wrench, heavy-duty steel mounting bracket, 4 screws. The built-in red pressure-relief button for water pressure release, making it easier for filter replacement
- 1" NPT Brass PORT: The BB water filter housing with 1" NPT Brass thread. Per your water quality, you can choose the sediment filter, carbon water filter, etc for the DIY installation of the whole housing water filtration system. (The filters and push fittings need to be purchased separately)
- COMPATIBLE CARTRIDGES: The SimPure DB20 BB housing fits for universal standard 4.5 x 20 filters cartridges, fits for Whirlpool, Aqua-Pure, Geekpure, Ronaqua, etc. Also fits for the whole house water filtration system DIY. (Filter cartridges are sold separately)
- Note: Brass threads offer superior sealing. Avoid excessive use of Teflon tape during installation to prevent damaging the brass threads and causing more severe water leaks
- About O-ring: If you need an O-ring suitable for DB20P, please search for B09TR53SD1
- Tips: Given the large size of this whole house water filter housing, please consider the space required to install and replace the filter element according to the size of the product, whether it is suitable for your installation area
Material: Brass, Polypropylene (PP)
Product Dimensions: 7"D x 23"W x 23"H
Item Weight: 10 Pounds
External Testing Certification: NSF
Product Benefits: Certified to reduce a wide range of contaminants for cleaner, safer water while ensuring easy and versatile use. See more
Model Number: DB20P
Product Benefits: Certified to reduce a wide range of contaminants for cleaner, safer water while ensuring easy and versatile use.
Brand Name: SimPure
UPC: 778695796590
Unit Count: 1.0 Count
Number of Items: 6
Manufacturer Part Number: DB20P
Manufacturer: SimPure
Material Type: Brass, Polypropylene (PP)
Compatible Water Purifier Models: SimPure DB20P
Item Dimensions D x W x H: 7"D x 23"W x 23"H
Item Weight: 10 Pounds
External Testing Certification: NSF
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 1 Count (Pack of 1)
Style: System (20 Inch x 4.5 Inch)
This filter housing is a reliable and affordable way to set up whole house water filtration. It was easy to install and works perfectly with standard filter cartridges. The quality seems great, ensuring clean water throughout my home!
Reviewed in the United States on January 24, 2026 by Noah Ferguson
Size: 1 Count (Pack of 1)
Style: System (10 Inch x 4.5 Inch)
Seems like the only ones that are bursting are the clear ones, and leaks at the pipe connections on the blue ones. Put some pipe seal on threads, a good thread sealer, and should do the trick. I got the blue one.
Reviewed in the United States on January 17, 2026 by JacMatMaz
Size: 1 Count (Pack of 1)
Style: System - Clear (10 Inch x 4.5 Inch)
GREAT CUSTOMER SERVICE! I had a persistent leak due to a messed up o-ring, and they were really helpful and replaced the system right away. Have observed no loss of flow or pressure. One suggestion: put a 1/4 inch piece of luan or plastic behind the mounting plate, this gives the input and output pipes a little wiggle room-helpful for us amateur plumbers.
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Reviewed in the United States on February 24, 2026 by Lance
Size: 1 Count (Pack of 1)
Style: System - Clear (10 Inch x 4.5 Inch)
Product is exactly what I needed, the filter and mounting bracket are robust, The only reason I didn’t give it 5 stars is because 1 of the 2 O-rings ( top one ) of the filter body is difficult to keep in place while installing. But the old mechanics trick of using a little Vaseline in the channel to keep it in its place works well.
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Reviewed in the United States on December 30, 2025 by Nworthy
Size: 1 Count (Pack of 1)
Style: System - Clear (10 Inch x 4.5 Inch)
I bought this unit because of the great flow rate. It has metal input and output fittings which allow for both teflon tape and joint compound to prevent leaks. It works great.
Reviewed in the United States on January 28, 2026 by Oldswab
Size: 1 Count (Pack of 1)
Style: System (20 Inch x 4.5 Inch)
We have well water with heavy sediment/heavy iron. We have a 100 micron, jumbo, self flushing spin down sediment filter that is INCREDIBLY EFFECTIVE, then this canister with a 50 micron filter, then finally a standard size whole house with a 5 micron filter. Because our problem was at times extreme, this set up effectively corrected our issue. The spin down back washes every 3 days, this large cartridge we hose the filter once monthly, this has extended the life of the 5 micron to requiring a change about every three months. When we started, we had a standard spin down, with a 200 micron filter, going straight to a 5 micron. Both would clog anywhere between 2-4 weeks. The key was to increase the pre filters (spin down and canister) to jumbo sizes, and to make sure the initial spin down is back washed every few days, and your filter screen sizes are the correct micron. This is what worked for us, and we had a big issue. Hope this helps the next guy.
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Reviewed in the United States on January 2, 2026 by Leigh
Size: 1 Count (Pack of 1)
Style: System (10 Inch x 4.5 Inch)
It took me about ten minutes to regret purchasing this piece of junk. As other reviews note, the pressure relief valve leaks no matter what -- and the manufacturer obviously knows it is a problem, because they send a replacement relief valve kit with it! I spent more on fittings than I spent on this canister, and wasted considerable time doing the install, only to find that this thing is incapable of containing water. I highly recommend that you buy something else. I'll be tearing this down, returning it, and searching for another product -- probably locally, since this kind of low quality bad experience is becoming par for the course for things purchased through Amazon. EDIT: I am updating this review due to the continuous contact I have had from the seller since I submitted it. First, they offered to "address any issues or concerns," and to "work to resolve the issues." That was useless, as I had already processed the return and refund through Amazon. Plus, there is no way to address or resolve a water filter housing which is incapable of containing water. Second, the following day, they contacted me again and offered to replace the product by sending me a "backup." It was unclear whether this would be free or at my cost, but in either case, I was not interested and did not respond. They offered to "meet my requirements" to "solve this issue with a wonderful ending," which I suppose means that I could have demanded something in return for editing or deleting my negative review. As noted, I did not respond. Third, a week later, I was again contacted, this time purportedly to discuss why I was returning the housing as an "unwanted item." The message from SimPure implied that I didn't want it because "it didn't meet my needs," to gather information to correct anything "inaccurate on the product detail page." I did not appreciate the implication that I returned the item because it did not meet my need. It was exactly what I needed -- or would have been, if it had the ability to contain water without leaking. I suppose if there is an inaccuracy on the product page, it is the statement that this plastic bucket will hold water and not leak. Although never stated (to avoid violating Amazon policy), it always seemed obvious that SimPure was fishing for a way to make me retract or at least tone down my negative review. Ultimately, all they accomplished was this edit -- my first ever in nearly 20 years of using Amazon -- to reflect an even more negative experience than originally experienced. In the end, I bought an AO Smith filter housing locally at the big box store, at a lower cost -- along with a couple of filter cartridges. That item installed easily and didn't leak a drop -- leaving me far more satisfied than SimPure's product and barrage of communications.
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Reviewed in the United States on July 2, 2022 by Big John
Size: 1 Count (Pack of 1)
Style: System (10 Inch x 4.5 Inch)
The SimPure whole house filter housing seems to be made very well. The reasons I chose it are that it is made of solid polypropylene and its design incorporates two o-rings. I did contact their support through email. I was interested in the size of the o-rings so I could have them on hand. They were quick to contact me with the information.
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Reviewed in the United States on February 2, 2026 by Larry