iSpring FM25B - Iron Manganese Reducing Replacement Water Filter, High Capacity 4.5" X 20"
$99.99
About this item
- Replacement filters for iSpring whole house filter systems (fits systems WGB32BM and WGB22BM )
- Iron & Manganese Reducing: iSpring FM25B is specially designed for iron & manganese removal, reducing iron (MAX 3.0 ppm down to 0.01 ppm) and manganese (MAX 1.0 ppm down to 0.01 ppm).
- High Flow Rate. Feed water pressure: 20 - 100 psi. Pressure impact: up to 5 psi drop at a flow rate of 8. Gpm Flow Rate: 4 - 8 gpm .The iSpring FM25B effectively removes harmful substances and improves water quality.
- High Stability and Durability: Stable and satisfactory performance at wider pH range 5.8 - 8.6 and temperature range 40 - 113F. Filter life: 50,000 gallons at 3.0 ppm iron level, or about 12 months @ 200GPD.
- High Quality Requirements: Manufactured to comply strictly with FDA standards and tested by independent third party against NSF/ANSI standards for water quality, material safety and structural integrity.
Frequently Bought Together
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iSpring FM25B - Iron Manganese Reducing Replacement Water Filter, High Capacity 4.5" X 20"
$99.99
- Availability: In Stock
- Model: FM25B
- Manufacturer: iSpring
Reviews with images
![](image/7_26_21_review_image/FM25B/Amazon/pbnoj.jpg)
![](image/7_26_21_review_image/FM25B/Amazon/kodiak.jpg)
![](image/7_26_21_review_image/FM25B/Amazon/J. Griffiths.jpg)
Write Review
J. Griffiths | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2018-03-13
as described exact fit for 20" water filter, see picture I have 3 filters cartridges in line, Sediment, Carbon and Iron Manganese. I change the sediment filter every 3 months, the carbon every 6 and the Iron.manganese every 12 moths, works for me.![](image/7_26_21_review_image/FM25B/Amazon/J. Griffiths.jpg)
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2018-03-13
as described exact fit for 20" water filter, see picture I have 3 filters cartridges in line, Sediment, Carbon and Iron Manganese. I change the sediment filter every 3 months, the carbon every 6 and the Iron.manganese every 12 moths, works for me.
![](image/7_26_21_review_image/FM25B/Amazon/J. Griffiths.jpg)
pbnoj | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2020-11-30
I retrofitted this iSpring filter & housing into my current whole house water filtration system. My system, prior to the FM25B installation, did a great job of removing particulate & chlorine from my public water but actually exacerbated the mold growth in my sink drains & faucet aerators, shower heads, due to the lack of chlorine. After reading up on this phenomenon I found that the culprit is residual iron & manganese in the water, which w/ the lack of chlorine to counteract the oxidation, actually promotes the growth. Thus the addition of the iSpring iron & manganese filter as the last stage in my system. Voila' , the mold is gone! No pink or brownish/black mold in the sinks, shower, etc. A 2nd benefit is that the water is now also significantly softer. I consulted w/ iSpring customer service rep Francis a couple of times prior to my purchase. He was extremely helpful, filling me in on the filter details, e.g. Fe & Mn particulate size limits. He even recommended that I contact my local water authority to verify what those #s are. FYI - that was a bit of a challenge given that these metals are NOT regulated by FDA guidelines & only measured against "recommendations". Smaller is better obviously because this determines the life of the filter. This is no small concern given the cost of the filter. Replacing it 1-2x per year is financially viable, 1/mo isn't. And finally, given the size of the filter and that it's added to my current system I decided to include a pressure regulator after the last filter stage (see pix) expecting that there'd be a pressure drop that I'd have to accommodate for. In the end, all is good, problem solved & pressure is still very good.![](image/7_26_21_review_image/FM25B/Amazon/pbnoj.jpg)
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2020-11-30
I retrofitted this iSpring filter & housing into my current whole house water filtration system. My system, prior to the FM25B installation, did a great job of removing particulate & chlorine from my public water but actually exacerbated the mold growth in my sink drains & faucet aerators, shower heads, due to the lack of chlorine. After reading up on this phenomenon I found that the culprit is residual iron & manganese in the water, which w/ the lack of chlorine to counteract the oxidation, actually promotes the growth. Thus the addition of the iSpring iron & manganese filter as the last stage in my system. Voila' , the mold is gone! No pink or brownish/black mold in the sinks, shower, etc. A 2nd benefit is that the water is now also significantly softer. I consulted w/ iSpring customer service rep Francis a couple of times prior to my purchase. He was extremely helpful, filling me in on the filter details, e.g. Fe & Mn particulate size limits. He even recommended that I contact my local water authority to verify what those #s are. FYI - that was a bit of a challenge given that these metals are NOT regulated by FDA guidelines & only measured against "recommendations". Smaller is better obviously because this determines the life of the filter. This is no small concern given the cost of the filter. Replacing it 1-2x per year is financially viable, 1/mo isn't. And finally, given the size of the filter and that it's added to my current system I decided to include a pressure regulator after the last filter stage (see pix) expecting that there'd be a pressure drop that I'd have to accommodate for. In the end, all is good, problem solved & pressure is still very good.
![](image/7_26_21_review_image/FM25B/Amazon/pbnoj.jpg)
Kodiak | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2020-05-12
Have had this for a couple of years now after having horrible manganese issues from our well water. Had priced an iron breaker but it was way too spendy. These are just the ticket. I have the iron/manganese filter along with a carbon filter. Where we notice it the most is our toilets. They stay much cleaner with a fresh filter. When they start getting brown reside its time to change it, usually about every 9 or 10 months. Great customer service as well and Amazon has the best prices and are direct from the manufacturer.![](image/7_26_21_review_image/FM25B/Amazon/kodiak.jpg)
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2020-05-12
Have had this for a couple of years now after having horrible manganese issues from our well water. Had priced an iron breaker but it was way too spendy. These are just the ticket. I have the iron/manganese filter along with a carbon filter. Where we notice it the most is our toilets. They stay much cleaner with a fresh filter. When they start getting brown reside its time to change it, usually about every 9 or 10 months. Great customer service as well and Amazon has the best prices and are direct from the manufacturer.
![](image/7_26_21_review_image/FM25B/Amazon/kodiak.jpg)
Don Scrutchfield | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2019-08-03
Works as specified. Removes iron from the water supply. Highly recommended.
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2019-08-03
Works as specified. Removes iron from the water supply. Highly recommended.
Frank Varela | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2019-02-22
Works for us. We had iron staining on toilets before this and after installing this it was much better. And our water has no more bad smell!
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2019-02-22
Works for us. We had iron staining on toilets before this and after installing this it was much better. And our water has no more bad smell!
Jose Coello | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2019-02-21
Works great! Combined with a pleated filter, takes almost all the rust out!
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2019-02-21
Works great! Combined with a pleated filter, takes almost all the rust out!
JOHN RODRIGUES | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2018-06-29
Good solid product. Fits well in our whole house system. Last me a whole year.
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2018-06-29
Good solid product. Fits well in our whole house system. Last me a whole year.
Murray Palmer | ![5 out of 5 Stars!](//123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2018-06-21
We live in an area with crappy high iron water. I sometimes have difficulty washing whites because our water leaves iron stains on them. After installed this iron-reducing filter my water was clearer and cleaner! I can wash whites without spots, and the handmade soaps we use not longer leave sticky soap scum on the tubs and sinks.
![5 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_5.png)
2018-06-21
We live in an area with crappy high iron water. I sometimes have difficulty washing whites because our water leaves iron stains on them. After installed this iron-reducing filter my water was clearer and cleaner! I can wash whites without spots, and the handmade soaps we use not longer leave sticky soap scum on the tubs and sinks.
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