US Water Big Blue Softening Resin Cartridge 4.5" x 20" | USWF - 4520 - SF - US Water Systems
US Water Big Blue Softening Resin Cartridge 4.5" x 20" | USWF - 4520 - SF - US Water Systems

US Water Big Blue Softening Resin Cartridge 4.5" x 20" | USWF-4520-SF

List Price: Factory Direct Price: SALE PRICE:
$91.59 $61.06
$54.95
$54.95
40% OFF FACTORY DIRECT SAVINGS
SKU: 507-USWF-4520-SF
4.5" x 20" Big Blue Replacement Softening Cartridge For Hardness Reduction
Subtotal: $54.95

Free Shipping

Free standard shipping on most products over $199.

One Year Satisfaction Guarantee

Learn More.
US Water Big Blue Softening Resin Cartridge 4.5" x 20" | USWF - 4520 - SF - US Water Systems

US Water Big Blue Softening Resin Cartridge 4.5" x 20" | USWF-4520-SF

$91.59 $54.95

US Water Big Blue Softening Resin Cartridge 4.5" x 20" | USWF-4520-SF

$91.59 $54.95

4.5" x 20" Big Blue Replacement Softening Cartridge For Hardness Reduction

  • Ideal Cartridge to Install Pre-RO to Lower Hardness
  • 6,200 Grains Capacity
  • 3 GPM Design flow rate
  • Fits Most 4.5” x 20” Big Blue Filter Housings
  • Temperature Range - 40°F (5°C) to 100°F (38°C)
  • Pressure Range - 20 PSI (1.4 bar) to 125 PSI (8.6 bar)

Overall rating: 5.0 / 5 from 8 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["change"].

Review highlights

Reviews

I can feel the difference,

"I can feel the difference, this product works. I was using the Lime Blaster product for a while but this seems more effective at delivering softer water. I may choose to alternate for the benefits of the Lime Blaster and soft water."

Brandon G. (5/5)

Needed to use less laundry soap!

"So I tried the lime blaster one for a few years and noticed it would def release build up in the line the first few weeks of use. But I switched to this to see if it would help with the feel of the water because our city water is very hard. The main differences I noticed is I have to use less laundry soap and hair conditioner."

Ana B. (5/5)

Our water is close, but

"Our water is close, but not quite hard enough to require a softer system. Been trying to treat with other filters. This was the missing piece. Performs great and takes that hard “edge” and scale out."

Kyle A. (5/5)

Filter system works great. Taste

"Filter system works great. Taste is the best."

Leonard H. (5/5)

BB water softening

"This BB water softening works great. It is my second time I purchased and I will buy again in 6 months or so."

Romeo M. (5/5)

Big difference in my well water

"I had a Nuvo H2O system on my well with a citrus softener cartridge for several years..it reduced a slight amount of calcium from my water but not enough. A friend introduced me to US Water and said he was very happy with the cartridge so I replaced my whole house system and used this one…. Made a significant positive change and will remain a user for years to come."

James S. (5/5)

It works

"Great softening device seams to be working."

Ronald T. (5/5)

Great filter if purchased fresh!

"Absorbs more hardness than filters costing more. Only problem is when resin is old, it discolors the water so DO NOT purchase more than you will need!"

Scott Z. (5/5)

Q&A

You May Also Need

Recently Viewed Products

Cursor
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95
Example product title
$91.59
$54.95