---
product_id: 39918623
title: "- Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks"
brand: "kolar labs"
price: "KD 10.79"
currency: KWD
in_stock: true
reviews_count: 13
category: "Kolar Labs"
url: https://www.desertcart.com.kw/products/39918623-kolar-labs-crystal-cal-activated-carbon-large-jar-activated-charcoal
store_origin: KW
region: Kuwait
---

# Fast-acting overnight clarity Universal filter compatibility Lab-grade FCC certified quality - Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks

**Brand:** kolar labs
**Price:** KD 10.79
**Availability:** ✅ In Stock

## Summary

> 💧 Crystal-clear water, zero compromises.

## Quick Answers

- **What is this?** - Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks by kolar labs
- **How much does it cost?** KD 10.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/39918623-kolar-labs-crystal-cal-activated-carbon-large-jar-activated-charcoal)

## Best For

- kolar labs enthusiasts

## Why This Product

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

## Key Features

- • **Premium Lab-Grade Purity:** Crafted to Food Chemicals Codex standards for aquarium-safe, trusted filtration.
- • **Seamless Filter Integration:** Large granules ensure optimal flow in any filter type—reactors, canisters, intank & hanging.
- • **Effortless Usage & Maintenance:** Simple dosing guide with quick rinse prep; replace every 2-4 weeks for peak performance.
- • **Overnight Water Transformation:** Eliminates cloudiness, colors & odors by morning—no waiting, just wow.
- • **Bulk Value for Serious Aquarists:** Generous 0.7 lbs jar delivers long-lasting filtration power—stay stocked, stay ready.

## Overview

Kolar Labs Granular Activated Carbon is a premium, lab-grade filtration media designed to rapidly clear aquarium water of cloudiness, discoloration, and odors overnight. Manufactured to strict FCC standards, its large granules optimize flow across all filter types, ensuring efficient and reliable performance. Ideal for professional aquarists seeking fast, effective water purification with easy dosing and maintenance.

## Description

desertcart.com : Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks : Pet Supplies

Review: Did the job and great bulk value - Bombed my tank for worms. The value on this jar was great. 3 lbs. The worm treatment wanted me to use 1 lb per 50 gallons. Soni sued 2 lbs and have another lb or so for emergency. Make sure to give it a good rinse. As you would for any activated carbon.
Review: Great value - Great value--lasted a couple of years for our 20-gallon tank. Did the job! With a name like Kolar--it's gotta be excellent! (My former surname). :}

## Features

- CONTAINS 0.7 lbs (320 g) - FAST RESULTS: Works quickly to eliminate cloudy water, colors and odors overnight – guaranteed
- TRUSTED SOURCE: Made according to Food Chemicals Codex (FCC) standards; Bringing you the highest quality, bulk and packaged Activated Carbon
- HIGH PERFORMANCE: Laboratory grade granular activated carbon; Specifically made with optimum pore structure for aquarium use
- WORKS IN ALL FILTERS: Large granules allow great flow in any filter media bag, cartridge or filter for efficient filtration; Use in reactors, canister filters, intank filters or hanging filters
- EASY TO USE: Use 1 cup per 50 gallons (1 tablespoon for every 3 gallons); Change every 2-4 weeks; Short rinse before use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06W2PJ1ZJ |
| ASIN  | B06W2PJ1ZJ |
| Age Range Description | Adult |
| Best Sellers Rank | #20,314 in Pet Supplies ( See Top 100 in Pet Supplies ) #198 in Aquarium Filter Accessories |
| Brand Name | Kolar Labs |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,407) |
| Date First Available | February 20, 2017 |
| Date First Available  | February 20, 2017 |
| Directions | Use 1 cup per 50 gallons (1 tablespoon for every 3 gallons); Change every 2-4 weeks; Compatible with all types of filters; Works quickly to clear up cloudy water, remove colors, and eliminate odors overnight |
| Is Discontinued By Manufacturer  | No |
| Item Package Dimensions L x W x H | 5.87 x 3.86 x 3.78 inches |
| Item Weight | 0.75 Pounds |
| Item model number | CC 320g |
| Item model number  | CC 320g |
| Manufacturer | Calgon Carbon |
| Manufacturer  | Calgon Carbon |
| Package Dimensions  | 5.87 x 3.86 x 3.78 inches; 12 ounces |
| Size | 320 g (Pack of 1) |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Kolar Labs
- **Item Form:** Granules
- **Item Weight:** 0.75 Pounds
- **Liquid Volume:** 50 Gallons
- **Manufacturer:** Calgon Carbon

## Images

![- Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks - Image 1](https://m.media-amazon.com/images/I/71oOR5N7mZL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this the same type of charcoal used in the bags to remove odors around the home and in vehicles?**
A: Yes, this is a true liquid phase carbon made specifically for water purification, but it will work well for air handling as well, to remove odors around the home, litter box etc.  One thing you will notice is that it is very clean, low dust, which you will really like when handling it.  Thanks!

**Q: can this be used in cat litter boxes?**
A: This product will be perfectly safe and effective for use in cat litter boxes.  Thanks!

**Q: What is the carbon made of?  Coal, hardwood, or coconut husk?**
A: This is called a sub-bituminous Granular Activated Carbon.  It is a very clean, coal based carbon, that is derived from a special source, not in China, with an excellent pore structure for aquarium use.

**Q: Can I use this product for water filter system for my house?**
A: Sure, that is how I use it.  Just be sure to rinse out the fine particles before you install.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Did the job and great bulk value
*by D***K on January 4, 2026*

Bombed my tank for worms. The value on this jar was great. 3 lbs. The worm treatment wanted me to use 1 lb per 50 gallons. Soni sued 2 lbs and have another lb or so for emergency. Make sure to give it a good rinse. As you would for any activated carbon.

### ⭐⭐⭐⭐⭐ Great value
*by 2***T on November 25, 2025*

Great value--lasted a couple of years for our 20-gallon tank. Did the job! With a name like Kolar--it's gotta be excellent! (My former surname). :}

### ⭐⭐⭐⭐⭐ Good customer service
*by W***K on February 8, 2026*

Good quality and delivery on time

## Frequently Bought Together

- Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks
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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-21*