








💧 Elevate your home’s water game—pure, powerful, and perfectly filtered.
The iSpring F4WGB22BPB is a 2-stage whole house water filter replacement set featuring high-capacity lead reduction and sediment removal. Designed to fit standard 20"x4.5" housings, it uses premium coconut shell carbon block filters tested to NSF/ANSI standards, delivering up to 150,000 gallons of clean water with minimal flow impact. Ideal for families seeking reliable, year-long protection against lead, chlorine, rust, and other contaminants, backed by lifetime tech support.



















| ASIN | B0776ZXQMZ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #25,719 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #201 in Replacement Under-Sink Water Filters |
| Brand | iSpring |
| Color | White |
| Customer Reviews | 4.8 4.8 out of 5 stars (379) |
| Date First Available | November 6, 2017 |
| Included Components | 2 pieces of 5 Micron 4.5x20" CTO Carbon Filter #FC25B2 pieces of Lead Reduing Filter #FCRC25B |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 13.77 pounds |
| Item model number | F4WGB22BPB |
| Manufacturer | iSpring Water Systems |
| Material | Resin |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | F4WGB22BPB |
| Product Benefits | Reduces chlorine, lead, etc |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| Size | 20" x 4.5" |
| Style | 2 Carbon Block + 2 Lead Reducing |
| UPC | 662425088751 |
| Unit Count | 2.0 Count |
M**Y
Very good filters. Work well on metal
Very good filters that take the metal out of our system. When I changed them out they were full of rusty metal. I’m on a tough well and these work very well. I change them out at 6 months. I left them to 8 months which was too long.
M**2
Improves water quality
Filters out sediment as described. My faucets have had a lot less sediment since I started using these filters
M**G
Perfect replacement filters.
These work great in my whole house filtration filters and I change them once a year. Great clean water all year. No more sediment in toilet tank since using also.
G**N
Excellent Customer service.
I purchased 2 iSpring filters through Amazon in September of 2025, one model FG25B KS and one FP25 B. I replaced the two 0riginal filters that came with the original system that I installed with the iSpring system in December of 2024. These original filters performed well for 9months with minimal pressure drop. I have pressure gauges on both the inlet side and outlet side of my system.as well as a pressure gauge monitoring my well pump pressure. Once I installed the new filters we started noticing a drop in water pressure in lates October. Thes pressure drops got worse till at times, we had only a trickle of water from our faucets. Pressure reading on the outlet side of the system would drop to almost nothing while pressure at the pump was still reading 60LB at cut out. I removed the sediment filter and put the empty blue canister back in place. The pressure drop did not change. I then removed the FG25B KS filter, replacing the empty blue canister and ran the system with no filter cartridges in place. Water pressure returned to within a pound or two of the pump pressure and flow to the house was as it should be. It was apparent that even after the short time these filter had been in service one or both had completely plugged up. We ran this system for 10 years without a whole house filter system with no evidence of excessive sediment or other flow issues, We installed the system after Hurricane Helene just to be safe. After diagnosing the problem as faulty filters I contacted Sean at iSoring. Sean was extremely helpful. I sent him proof of purchase via email and he responded immediately stating he would send out new replacement filters right away at no charge. I received them in two days. I have yet to install them but I am sure based on the excellent customer service from Sean and iSpring, should I have additional issues, I can depend on iSpring to do their best to rectify the problem.
K**A
Really great customer service
This company has amazing customer service, especially Sean over there. The equipment works very well most of the time, and when it does not, they immediately rectify the situation. A great value all around.
A**R
Filters well
Gets rid of unwanted contamination in water. The iron filter is on the little expensive side.
C**L
Excellent product and customer service
We have had an iSpring system for 5 years and it does a great job of filtering our water. It removes the minerals that would leave rust spots in our sinks protecting our fixtures. We recently purchased replacement filters, but one set was faulty and restricted our water flow to almost no flow. This had never happened in the years we’ve had the system and replaced the filters. A quick call to customer service and iSpring said they’d replace the filters. Thanks Nick! Update: The filters that arrived initially were the wrong size. One email to Nick and he resolved the issue. The correct size filters arrived quickly and our system is working perfectly! Nick has been great to work with and we remain happy with iSpring.
D**S
Does a good job.
Works. The sediment filter does a good job at removing rust from water.
B**S
These made an incredible difference - our water is perfect now Read the other reviews and you definitely get quality and value More costly than cheap filters but worth it for drinking water
J**N
Decent
A**R
Filtrage de l'eau
M**C
Efficace mais très dispendieux. Ils ont énorme augmenter depuis 1 ans . Cherche solution de rechange
A**Y
Works well but expensive!
Trustpilot
5 days ago
2 days ago