Skip to product information
1 of 8

SimPure Whole House Water Filter Cartridges 5 Micron 20" x 4.5" CTO Activated Carbon Block, For DB20P, FC25B, CTO20BB, WHB20, 6 Pack

SimPure Whole House Water Filter Cartridges 5 Micron 20" x 4.5" CTO Activated Carbon Block, For DB20P, FC25B, CTO20BB, WHB20, 6 Pack

Quantity
Regular price $279.99
Regular price Sale price $279.99
Sale Sold out
  • 24/7 Customer Support
  • Risk-Free 30-Day Returns
  • Fast & Reliable U.S. Shipping

30-Day Hassle-Free Returns

Not satisfied? Return your order within 30 days for a full refund or exchange — simple and easy.

✔ Easy return process

✔ Fast refunds

✔ No hidden conditions

Fast U.S. Shipping

We ship within the United States only — no international delays.

✔ Processing time: 1–2 business days

✔ Delivery time: 3–7 business days

✔ Real-time tracking available

👉 Track your order anytime from the header via Track Order

About This

  • [Premium & Reliable Material] Made of premium coconut shell carbon block and wrapped in food-grade fabric layers, the SimPure CTO activated carbon water filter effectively blocks contaminants larger than 5 microns from entering the water. Tested by independent third-party to meet NSF 42 Standards for material.
  • [Real 98% Filtration Efficiency] 5 micron water filter carbon cartridge adsorbs up to 98% of residual chlorine, removes tastes and odors like sulfur and chlorine smell, colors, significantly improving water quality. Use this whole house charcoal water filter with sediment filters in the 20inch x 4.5inch household water system to protect the water softener and home appliances, or use them after an inline sediment filter to filter well water or rainwater.
  • [High Flow Rate and Long Service Life] This 20-inch water filter has a large filtration area and a high flow rate of up to 15 GPM, which can meet the water needs of your whole house. It can filter up to 80,000 gallons of water before replacement, saving you time and money. To achieve optimum performance, we suggest to replace it every 3-6 months depending on your water quality.
  • [Universal Size] This 4.5x20 water filter compatible with most 20-inch x 4.5-inch (inner diameter) big filter housings such as SimPure DB20, DB20P, WGB32B, WGB22B WGB12B, HB28B, Geek-Pure BB-20T, BB-20B, 150233, 166201, etc. Ideal replacement for 20-in filter cartridges like FC25b, EPM-20BB, EP-20BB, CBC-20BB, Hydronix CB-45-2005, and CB-20B. Rubber washers on both ends ensure a tight seal.
  • [Versatile Application] It can be used for well water or city water, suitable for various scenarios such as home, office, farm, restaurant, etc.

Overview

  • Material : Coconut Shell Carbon Block
  • Product Dimensions : 4.5"D x 4.5"W x 20"H
  • Item Weight : 25.8 Pounds
  • External Testing Certification : NSF
  • Product Benefits : Eliminates contaminants like chlorine, VOCs, taste, odors, and certain heavy metals for POE, and well water systems Eliminates contaminants like chlorine, VOCs, taste, odors, and certain heavy metals for POE, and well water systems
View full details
Is Hard Water or Contaminated WaterDamaging Your Home?
Signs You May Be Experiencing Problems With Your Tap Water
Protect Your Home Appliances
rss_feed
Softer Skin & Healthier Hair
rss_feed
Pure, Better-Tasting Drinking Water
rss_feed
Prevent Costly Hard Water Damage
rss_feed
Reduce Limescale Buildup
rss_feed
Clean Water, Whole Home
rss_feed
Protect Your Home Appliances
rss_feed
Softer Skin & Healthier Hair
rss_feed
Pure, Better-Tasting Drinking Water
rss_feed
Prevent Costly Hard Water Damage
rss_feed
Reduce Limescale Buildup
rss_feed
Clean Water, Whole Home
rss_feed
RO Water Filters Reverse Osmosis Water Filters for Pure Drinking Water
Salt Water Softeners Salt Water Softeners for Powerful Hard Water Treatment
Pure Water. Better Living.

Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.

👉 Softer skin and smoother hair with every shower.

Descaling Solutions Descaling Solutions for Removing Limescale and Mineral Buildup
👉 Enjoy healthier skin and hair with every use.
Water Filter Cleaning Kits

👉 Prevent scale buildup and keep your appliances running efficiently.

Under Sink Water Filters

👉 Softer, brighter clothes that last longer with every wash.

Reverse Osmosis Systems Best Reverse Osmosis Systems for Clean Drinking Water

See the Difference in Your Water — Instantly

Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.

Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.

Feel the difference in every drop — from your kitchen to your shower.

Impurity Reduction 95%
Chlorine Removal 99%

FAQ

Is installation difficult?
expand_less
expand_more
No. Our systems are designed for easy DIY installation and most homeowners can install them without professional tools. If you need help, our support team is always available.
Do I need a plumber to install the system?
expand_less
expand_more
No plumber is required. The system connects directly to your existing plumbing with simple fittings.
How does this system improve water quality?
expand_less
expand_more
Our filtration system helps reduce common impurities and minerals that cause hard water problems, improving the taste and clarity of your water.
Will this help protect my appliances?
expand_less
expand_more
Yes. Hard water minerals can build up inside appliances. Our system helps reduce scale buildup, helping extend the life of washing machines, dishwashers, and water heaters.
How often do filters need to be replaced?
expand_less
expand_more
Most filters only need replacement every 6–12 months, depending on usage and local water conditions.
Will this improve my skin and hair?
expand_less
expand_more
Many customers notice softer skin and smoother hair after switching to filtered or softened water.
What if I'm not satisfied with the system?
expand_less
expand_more
If you're not completely satisfied, you can return your product within 30 days for a full refund.
Easy to install — no plumber required. Our experts are here if you need help.
Strategic Partner

Unlock Exclusive Offers

Be the first to know about new collections and exclusive offers.

Subscribe Now