20″ x 4.5″ Whole House Granular Activated Carbon Water (GAC) Filter
Original price was: $90.99.$70.99Current price is: $70.99.
No minimum · Contiguous U.S.
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Overview
Granular activated carbon. RFN20BB-C uses GAC media for a chlorine, taste and odor filtration goal.
Match the cartridge to your system. Check your existing 20-inch housing, cartridge diameter, end caps and seals before ordering.
Choose your pack. This listing offers a 2-pack. Use the filtration links to compare other compatible carbon options.
Specifications
| Model | RFN20BB-C |
|---|---|
| Cartridge dimensions | 20 inches length × 4.5 inches diameter |
| Media | Granular activated carbon (GAC) |
| Filtration goal | Chlorine, taste and odor |
| Currently available pack | 2 Pack |
| Replacement timing | Follow the cartridge and housing instructions; water quality and use affect timing |
ICEPURE is an independent brand. Confirm the housing manual, cartridge end caps and seals; dimensions alone do not establish fit.
Help me choose — optional buying guide
Already know your filter? Use the purchase options above. Open this guide only when you want help comparing your existing system.
Visible sand, rust or sediment
Compare the existing sediment option using the sediment loading in your water report. Confirm the selected cartridge rating and housing fit.
Municipal water: chlorine, taste or odor
Compare the existing carbon option for a compatible 20″ × 4.5″ housing. Choose its available pack on that product page.
A specific lead, iron or manganese concern
Identify the measured concern in your water report and choose a matching model that names that reduction claim. A carbon or sediment category alone does not establish that performance.
Hard water or scale
Hardness needs a separate treatment plan. A standard sediment or carbon cartridge does not soften water.
My city-water system already has two separate 20″ × 4.5″ housings
This example requires two existing independent housings. Confirm the end caps, seals, water conditions and required flow for each stage.
- First housing: sediment. Compare the existing sediment cartridge to protect the next stage from visible sediment.
- Second housing: carbon. Compare the existing carbon cartridge for a chlorine, taste or odor goal.
One housing cannot hold this two-cartridge layout. Choose each existing product’s pack separately. This example does not establish compatibility for every system or source water.
FAQs
Can I choose by dimensions alone?
No. Check the housing model, cartridge end caps and seals along with dimensions.
What happens when I choose another filtration option?
The links open existing product pages. Choose the available pack on the selected product page.
When should I replace the cartridge?
Follow the cartridge and housing instructions. Water quality and use affect replacement timing.
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