SKU: 40977404915

OptiPure CTOS-20B, 252-20520, 20 ich Jumbo Carbon Filter, IsoNet® Scale Inhibitor

$102.56 $113.95
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

OptiPure CTOS-20B, 252-20520, 20 ich Jumbo Carbon Filter, IsoNet® Scale InhibitorCTOS 20B Part # 252 20520 The CTOS 20B is a 4. 5 x 20 Drop In cartridge that reduces sediment down to 0. 5 micron and reduces chlorine, taste & odor at a flow rate of 5. 0 gpm for 50,000 gallons. The cartridge includes IsoNet, OptiPures patented scale inhibiting technology, which delivers consistent protection against the precipitation and accumulation of scale and provides a protective barrier to help guard against corrosion. Applications ICE COFFEE

CTOS-20B

Part # 252-20520

The CTOS-20B is a 4.5” x 20” Drop-In cartridge that reduces sediment down to 0.5 micron and reduces chlorine, taste & odor at a flow rate of 5.0 gpm for 50,000 gallons. The cartridge includes IsoNet®, OptiPure’s patented scale-inhibiting technology, which delivers consistent protection against the precipitation and accumulation of scale and provides a protective barrier to help guard against corrosion.

Applications

ICE

COFFEE

STEAM

**FILTERS SOLD INDIVIDUALLY**
 
Alternate Part Numbers:
Puremark:  PFS20BB5-S
 
 
Features and Benefits:
 
• IsoNet® - OptiPure’s patented scale inhibiting technology protects equipment against scale and corrosion.
 
• Reduces maintenance frequency and cost, and extends equipment life.
 
• Gradient-density depth filtration reduces dirt, rust, and other debris as small as 1/2 micron to assure clean, clear water and protect solenoids, valves and other fittings against wear and plugging.
 
• Activated carbon filtration makes water taste great and protects equipment against corrosive chlorine.
 
• High capacity cartridge extends filter system life reducing maintenance frequency.
 
• Improves equipment operating efficiency by reducing scale and corrosion.
 
• Generates less waste, only the drop-in cartridge is replaced. No discarding of metal or plastic quick-change cartridges.
 
• Replacement cartridge cost per gallon is much less than proprietary quick-change filters.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40977404915

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4.1 ★★★★★
Based on 19 reviews
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A
Verified Purchase
Amyth4
Bozeman, US
★★★★★ 2
Flimsy - choose something else
Color: Black
Very flimsy and barely stands up… better options out there.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 11, 2025
L
Lorraine
Battle Creek, US
★★★★★ 4
Smooth, Stable, and Perfect for Flexible Spaces
Size: 88''W-4 Panel, Color: Grey, Size: 88''W-4 Panel, Color: Grey
This room divider is incredibly easy to move thanks to its industrial-grade silent casters. It glides smoothly across different floor types with just one hand and without any noise, while the built-in wheel locks keep it firmly in place once positioned, no slipping or unwanted movement. The base with reinforced steel feet adds impressive stability, preventing wobbling even in busy or high-traffic areas. I also love the foldable design, which makes storage effortless when it’s not in use. It folds down compactly and fits neatly into small spaces. I gave only 4 stars because I'm not crazy about the color of the fabric. Otherwise this is a very functional way to separate areas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
K
K
Omaha, US
★★★★★ 5
easy to put together, stable and blocks out unwanted eyes.
Size: 88''W-4 Panel, Color: Grey
If you live in a high rise building, or where there is lots of foot traffic and can see in your windows, this is a must have. It's portable, can fold down one or two walls and easy to move around. Put together once, and block out light and eyes while tall enough to see over. You can fold it up along the wall, and use it to block out the blinds or light when using a projector so that it's darker. You can use it to partician the room if you share one, and separate your pile of junk from your room so you don't look at it, can take quite a bit of towel weight and clothes and doesn't tip over. Sturdy bottom metal and easy to put together. I got the grey one, and glad I did. I use it everyday and is part of my room decor. I love it, and after using it for a few months it's quite durable. The quality is there for sure. A tad pricey, but worth it. Must have for a private person.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
K
KKat 10
Charlottesville, US
★★★★★ 5
Well made dividers.
Size: 88''W-4 Panel, Color: Grey
Very durable and stable. Once positioned, they stay upright and firm and don't wobble around. Good materials on both the panels and the frame that supports it. Great for any partitioning needs and a fair price for the quality you receive. Highly recommended.
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Reviewed in the United States on November 28, 2025
M
Verified Purchase
Martha
Lowell, US
★★★★★ 1
No se usó, llego incompleto
Size: 88''W-4 Panel, Color: Beige
Lo devolví, llego incompleto
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Reviewed in the United States on February 11, 2026

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