Waterdrop Mega Spin Down Sediment Filter, Reusable Whole House Water Filter System for City Water, Backwash Sediment Water Filter System, 100 Micron+5 Micron PP Filter, 1" MNPT + 3/4" FNPT, BPA Free
Condition: New
Buy Now, Pay Later
As low as
$28.33
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 5 left in stock, order soon!
Arrives
Sunday, Apr 26
Recently Viewed
Style: Mega PP Filter
Features
- 2-in1 Composite Design Experience the innovative composite whole house water filter with our 2-in-1 solution, expertly combining a pre-filter and whole-house system to reduce sediment, rust, dirt, sand, silt, large particulates with high efficiency.
- Supersize DesignThis spin down whole house water filter has a 6.9" x 5.7" x 15.9" large size for superior impurities capacity, delivering a consistent 20 GPM flow rate. Innovative design reduces clogging and supports easy manual backwash, making effortless maintenance.
- Simple MaintenanceThe whole house water filter features 100 micron steel mesh and 5 micron PP cotton filter. And it is suitable for well water and municipal water use. Meanwhile,the visible design body makes it easy to monitor filter life and simple maintenance.
- NSF/ANSI 372 CertifiedThe water filter system is certified by NSF/ANSI 372 for lead-free materials to make your water safety.Built with durable materials, our water filter system has passed 100,000+ water hammer tests and low temp resistance to resist harsh environments.
- Easy InstallationEffortless installation and budget-friendly filter replacements, combined with an filter switch handle, make this pre-filter a wise choice for comprehensive home water protection, safeguarding appliances and prolonging their lifespan.
Brand: Waterdrop
Special Feature: 2-in1 Composite Design, Backwash Sediment Water Filter, Sediment reduction
Product Dimensions: 6.9"L x 5.7"W x 15.9"H
Material: Brass, Polypropylene, Stainless Steel
Capacity: 4.9 Pounds
Included Components: Mega Spin Down Sediment Filter*1, PP cotton filter*1, Instruction Manual*1
Package Information: Cartridge
Installation Type: Under Sink
Purification Method: Sedimentation
Power Source: None Or Na
Brand: Waterdrop
Special Feature: 2-in1 Composite Design, Backwash Sediment Water Filter, Sediment reduction
Product Dimensions: 6.9"L x 5.7"W x 15.9"H
Package Information: Cartridge
Installation Type: Under Sink
Power Source: None Or Na
Item Weight: 2.53 Pounds
Model Name: WD-BG100
Maximum Flow Rate: 20 Gallons Per Minute
Operating Pressure Range: 14.5~72 PSI
Supported Water TDS Level Maximum (PPM): 500
Manufacturer: Waterdrop
Item Weight: 2.53 pounds
Item model number: WD-BG100
Is Discontinued By Manufacturer: No
Date First Available: July 1, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Apr 26
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: 50/100 Micron Filter
I installed the Waterdrop Mega Spin Down Sediment Filter on my whole-house system, and so far it has been working perfectly. The build quality feels solid, installation was straightforward, and the dual 50-micron + 100-micron filtration is a nice upgrade from my old setup. What impressed me most is that there’s almost no noticeable pressure drop — the water pressure before and after the filter is essentially the same, which isn’t always the case with sediment filters. The reusable design and easy backwashing are added bonuses that should make long-term maintenance simple. Overall, I have no complaints. This filter performs well, keeps sediment out of the system, and maintains strong water flow. Highly recommended.
...
show more
Reviewed in the United States on December 10, 2025 by Peter Dong
Style: 50/100 Micron Filter
What a wonderful piece of equipment. An easy install by my Handyman! Very efficient, and I am already getting positive results. I would appreciate another copy of the instruction booklet as the original got lost.
Reviewed in the United States on October 29, 2025 by Aneta
Style: Mega PP Pleated Filter
Build quality is very good. Kit includes fittings to adapt it to both 1" and 3/4" Pex adapters. Only complaint is the mounting bracket is not very well designed and it makes it very difficult to use the included wrench to unscrew the filter mounting ring. I am a fairly skilled mechanic and I can't do it without removing the filter from the wall mount and putting it on a work bench. That means I will have to use push fittings for the PEX input and output so I can change filters. I wonder if they included the wrong wrench. It rally sucks. Everything else is very good.
...
show more
Reviewed in the United States on October 8, 2025 by mda185
Style: 50/100 Micron Filter
Works great. However, during the install I had to add some Teflon tape to the threads of the main caster plus the threads of the inlet and outlets. There's also silicone washers you need to use on the inlets and outlets else it will leak. They are included, however the directions do not show those in the diagrams. Other than that, once we got the leaks under control it's been working great. It's a lot bigger than it looks in the pictures.
...
show more
Reviewed in the United States on December 6, 2025 by P. White
Style: Mega PP Filter
Filter is solid and appears to be built well. Installation was straight-forward. Like other reviews have mentioned, the wall mounting bracket will support the filter, but not hold it in place. I went to change the filter cartridge for the first time (after about 6 weeks), but when I moved the top control to "Off", I still had flow from the filter bowl. I tried several times, but couldn't get the flow stopped. The valve handle moved smoothly and gave no indication of problems. I contacted Waterdrop support and they told me to service the valve or call a plumber. They also sent a nice video of how to open the filter housing to change the cartridge, but not how to address the "Off" setting not functioning properly. I tried again after my conversations with support, and was able to get the "Off" setting to work and change the filter. No idea why it took several tries to seal. I will likely add isolation valves to help with this. UPDATE: After leaving a negative review, Waterdrop contacted me about replacing the filter. Turns out the "Off" postion does not isolate the filter from backflow from the output side of the filter. Once I added a valve to the output side, I was able to prevent gravity backflow (filter in basement). At this point, the only negative remaining is how fast the filter gets clogged by the silt from the well-- certainly not the filter's fault. I'll have to see how well the backwash performs, now that I have a downstream valve.
...
show more
Reviewed in the United States on September 17, 2024 by C. J. RHEA
Style: Mega PP Pleated Filter
I'm very happy with this filter! I replaced one that was clogging up at least once a day, sometimes more. This one is at least 4 times the size and water has been flowing much faster!
Reviewed in the United States on July 6, 2025 by Kyle
Style: Mega PP Filter
I was really hoping this could be best 2 in 1 filter to get the larger sediment plus filter out the smaller debris in my well water in a single filter housing for my limited space. I can say that this filter is WELL made - very heavy duty. The bracket is terrible though. I kept having the filter moving slightly while installing all the piping which would dislodge the bracket - so frustrating! I ended up putting a screw above the bracket to not allow it to come up and fall off. Also make sure you get some pipe dope as even when using MANY wraps of thread tape it still had a slow leak. After using the pipe dope no leaks. My old setup - Incoming well water > cold water pressure tank > water softener > to inside lines My new setup - Incoming well water > cold water pressure tank > Waterdrop Sediment (This) filter > water softener > to inside lines My water has a lot of rust, sediment, etc in it. We never had any sort of filter before and didn't really know the 'raw' quality of the incoming water as the water softener was taking care of it. I wanted this filter before the softener because the small brine nozzle frequently clogs up with debris so I was hoping this could solve that. The filter for sure is doing it's job. After a day I can see the larger particles getting trapped by the 100 micron metal mesh filter and the inside 5 micron filter was quite red with sediment. This certainly won't be lasting me more than a month as within 3 days it's already quite dark. Backwashing only really removes the debris from the metal mesh filter, nothing really comes off the inside filter. That brings me to why I can't give it 5 stars... it's not anything relating to the filter itself, more that I didn't do enough homework before purchasing. The inside filter is a non-standard filter and they only make it in the 5 micron size. While they are not terribly expensive, not having the option to go up a micron size (and in my case allowing the water softener to take back some of the work) locks you into replacing them much more frequently when your incoming water supply isn't the best. I emailed the company asking for a larger micron filter option and they don't make one. I'm going to end up swapping this entire filter system out for a different brand that takes universal filters which will allow me the flexibility to try different types and micron sizes to get the best combination for my water. **IF they end up making other filters in the future, I would say it may be a good system as the quality is there. **IF your incoming water supply is very good already, this may be a good one and done option for you as a preventative option for the occasional sediment situations. As-is, I wouldn't recommend this to people on a well. I would say it's more for city water supply usage only. Too bad I'm past the return window as this would certainly be going back at this point. Side note - check Menards for OmniFilter housings and filters as they usually have the best price compared to buying them elsewhere.
...
show more
Reviewed in the United States on June 7, 2024 by Ben