---
product_id: 393675708
title: "Pentek C1-20BB Big Blue Water Filter, 20-Inch Whole House Dual Purpose Powdered Activated Carbon Replacement Cartridge, 20\" x 4.5\", 5 Micron, Black"
brand: "pentek"
price: "₨3698"
currency: SCR
in_stock: false
reviews_count: 2
url: https://www.desertcart.sc/products/393675708-pentek-c1-20bb-big-blue-water-filter-20-inch-whole
store_origin: SC
region: Seychelles
---

# 40,000 Gallon Long-Lasting Capacity 5 Micron Precision Filtration Dual-Purpose Sediment & Chlorine Reduction Pentek C1-20BB Big Blue Water Filter, 20-Inch Whole House Dual Purpose Powdered Activated Carbon Replacement Cartridge, 20" x 4.5", 5 Micron, Black

**Brand:** pentek
**Price:** ₨3698
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your water game with clarity you can trust!

## Quick Answers

- **What is this?** Pentek C1-20BB Big Blue Water Filter, 20-Inch Whole House Dual Purpose Powdered Activated Carbon Replacement Cartridge, 20" x 4.5", 5 Micron, Black by pentek
- **How much does it cost?** ₨3698 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/393675708-pentek-c1-20bb-big-blue-water-filter-20-inch-whole)

## Best For

- pentek enthusiasts

## Why This Product

- Trusted pentek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Year-Long Freshness:** Filters up to 40,000 gallons—replace annually or when water pressure drops.
- • **Economical & Efficient:** High-performance filtration without breaking the budget.
- • **Crystal Clear Hydration:** Eliminates fine sediment and chlorine for pristine water quality.
- • **Universal Compatibility:** Fits all standard 20" Big Blue housings for seamless upgrades.
- • **Durability Meets Performance:** Robust carbon-impregnated cellulose media with external netting for strength.

## Overview

The Pentek C1-20BB Big Blue Water Filter is a 20-inch dual-purpose cartridge designed to fit all standard Big Blue housings. Featuring a 5-micron carbon-impregnated cellulose media, it effectively filters fine sediment and reduces chlorine taste and odor. With a robust 40,000-gallon capacity, this economical filter ensures crystal-clear water for up to one year, making it ideal for whole-house residential filtration.

## Description

Pentair Pentek C Series Cartridges offer an economical solution for all your general-purpose water filtration needs. Constructed of a carbon impregnated cellulose media, these dual-purpose cartridges filter out fine sediment particles and reduce unwanted taste, odor, and chlorine taste & odor from your tap water. External netting provides additional strength and dirt-holding capacity. C Series Cartridges are available in a variety of sizes and are nominally rated at 5-microns. These dual-purpose cartridges are well suited for a wide range of residential applications, and make excellent polishing filters when used in process or closed-loop streams.

Review: This filter really works. I live in Fort Lauderdale and for the past 10 years, I was using a different brand and I won't say the name of the Company (which begins with the letter "A"). The price of their filter is twice the cost of this brand (plus shipping), so I thought I would try this filter just to see how it worked. Well, for the past 10 years, our drinking water was clean of any noticeable sediment, however it was always a little yellow. The new Pentair filter takes out all of the sediment AND OUR WATER IS CRYSTAL CLEAR! I am not sure if you can imagine how happy I am with these results. Thanks, Pentair.
Review: This filter is terrible. After using this filter for approximately three weeks the water in our toilets was black and had an awful smell. Replaced the charcoal filter with the type filter we were using and no more black or smelly water. Seller refuses to admit there is a problem with the filters.

## Features

- ECONOMICAL SOLUTION for all your general water filtration needs
- FITS ALL 20" Big Blue housing and can replace any 20" x 4.5" carbon water filter
- DUAL-PURPOSE CARTRIDGE filters out fine sediment particles and reduces chlorine in your tap water
- EXCELLENT POLISHING FILTER when used in process or closed-loop streams
- 40,000 GALLON CAPACITY. Replace every 1 year or when you notice a change in water pressure or quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0057FXPDW |
| Brand | Pentek |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (20) |
| Date First Available | 10 December 2012 |
| Item Weight | 1.11 Kilograms |
| Material | Polypropylene (PP) |
| Model Number | 155651-43 |
| Product Dimensions | 50.8 x 11.43 x 11.43 cm; 1.11 kg |

## Product Details

- **Brand:** Pentek
- **External testing certification:** NSF
- **Item weight:** 1.11 kg
- **Material:** Polypropylene (PP)
- **Product benefits:** Reduces Chlorine

## Images

![Pentek C1-20BB Big Blue Water Filter, 20-Inch Whole House Dual Purpose Powdered Activated Carbon Replacement Cartridge, 20" x 4.5", 5 Micron, Black - Image 1](https://m.media-amazon.com/images/I/61sieKNZ64L.jpg)
![Pentek C1-20BB Big Blue Water Filter, 20-Inch Whole House Dual Purpose Powdered Activated Carbon Replacement Cartridge, 20" x 4.5", 5 Micron, Black - Image 2](https://m.media-amazon.com/images/I/71HkVHkEsdL.jpg)
![Pentek C1-20BB Big Blue Water Filter, 20-Inch Whole House Dual Purpose Powdered Activated Carbon Replacement Cartridge, 20" x 4.5", 5 Micron, Black - Image 3](https://m.media-amazon.com/images/I/71ZZBSPbwML.jpg)

## Questions & Answers

**Q: Is this tha same as am. plumber w5cip478?**
A: Yes, this is the same filter, it just has a different brand name on the label.   Both brands (American Plumber and Pentek) are owned by Pentair.

**Q: What size are the inlet and outlet nipples?**
A: I really don't know.  They fit the filter canister that I bought from my plumber.

**Q: I have a model ccf-201 ametek filter system.  what filter will be great to replace the cartridges with?**
A: Probably best to go to the manufacturer's website and see what they recommend

**Q: What is the carbon made from? What is the cellulose powder made from?**
A: We use the C1-20 Carbon filter in our ware treatment system for our summer cabin. It is one of 4 filters, plus a UV-Light.  I assume the carbon filter is some sort of activated carbon for controlling the taste of the water. Lov2Read

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 24 February 2024*

This filter really works. I live in Fort Lauderdale and for the past 10 years, I was using a different brand and I won't say the name of the Company (which begins with the letter "A"). The price of their filter is twice the cost of this brand (plus shipping), so I thought I would try this filter just to see how it worked. Well, for the past 10 years, our drinking water was clean of any noticeable sediment, however it was always a little yellow. The new Pentair filter takes out all of the sediment AND OUR WATER IS CRYSTAL CLEAR! I am not sure if you can imagine how happy I am with these results. Thanks, Pentair.

### ⭐ Review
*by S***Y on 21 November 2025*

This filter is terrible. After using this filter for approximately three weeks the water in our toilets was black and had an awful smell. Replaced the charcoal filter with the type filter we were using and no more black or smelly water. Seller refuses to admit there is a problem with the filters.

## Frequently Bought Together

- Pentair Pentek C1-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Dual Purpose Powdered Activated Carbon-Impregnated Cellulose Replacement Cartridge, 20" x 4.5", 5 Micron , Black
- Pentair Pentek 158204 Traditional Slim Line Filter Housing, 1/2" NPT #20 Whole House Opaque Water Filter Housing with Pressure Relief Button, 20-Inch, Blue
- Pentair Pentek P5 Sediment Water Filter, 10-Inch, Under Sink Spun-Bonded Polypropylene Replacement Cartridge, 10" x 2.5", 5 Micron

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-01-30*