---
product_id: 666834497
title: "Crystal Cal Premium Activated Carbon, 300gram, Reef Aquarium Grade, CALGON Carbon"
brand: "kolar labs"
price: "576 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/666834497-crystal-cal-premium-activated-carbon-300gram-reef-aquarium-grade-calgon
store_origin: DK
region: Denmark
---

# Fast-acting clarity Universal filter fit Lab-grade purity Crystal Cal Premium Activated Carbon, 300gram, Reef Aquarium Grade, CALGON Carbon

**Brand:** kolar labs
**Price:** 576 kr
**Availability:** ✅ In Stock

## Summary

> 💎 Crystal-clear reefs start here — don’t let your tank miss out!

## Quick Answers

- **What is this?** Crystal Cal Premium Activated Carbon, 300gram, Reef Aquarium Grade, CALGON Carbon by kolar labs
- **How much does it cost?** 576 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/666834497-crystal-cal-premium-activated-carbon-300gram-reef-aquarium-grade-calgon)

## 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

- • **Simple, Precise Usage:** Easy dosing with clear guidelines for maintaining pristine aquarium conditions
- • **Optimized Granule Structure:** Engineered pores maximize contaminant absorption for reef-grade water purity
- • **Premium FCC Certified Quality:** Guaranteed food-grade activated carbon for safe aquatic environments
- • **Seamless Filter Compatibility:** Large granules ensure smooth flow in reactors, canisters, and all filter types
- • **Overnight Water Transformation:** Eliminates cloudiness, odors & discoloration by morning

## Overview

Crystal Cal Premium Activated Carbon delivers 320g of lab-grade, FCC-certified granular carbon designed specifically for reef aquariums. Its optimized pore structure rapidly removes cloudiness, discoloration, and odors overnight, fitting effortlessly into all filter types. Trusted by professionals, it ensures superior water clarity and health for up to 50 gallons with easy dosing and bi-weekly replacement.

## Description

Crystal Cal Premium Activated Carbon, 300gram, Reef Aquarium Grade, CALGON Carbon

## 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 |
|---------------|-------|
| Brand | Kolar Labs |
| Liquid Volume | 50 Gallons |
| Item Weight | 0.75 Pounds |
| Item Form | Granules |
| Manufacturer | Calgon Carbon |
| UPC | 851794007214 |
| Global Trade Identification Number | 00851794007214 |
| Item model number | CC 320g |
| Package Dimensions | 14.91 x 9.8 x 9.6 cm; 340.19 g |
| ASIN | B06W2PJ1ZJ |

## Product Details

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

## Images

![Crystal Cal Premium Activated Carbon, 300gram, Reef Aquarium Grade, CALGON Carbon - 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.

## Frequently Bought Together

- Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks
- DEPEPE 10pcs Aquarium Filter Media Bags with Zipper for Activated Carbon, Biospheres, Ceramic Rings
- Marineland White Diamond 50 Ounces, Removes Toxic Ammonia, Aquarium Filter Media

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**Shop now:** [https://www.desertcart.dk/products/666834497-crystal-cal-premium-activated-carbon-300gram-reef-aquarium-grade-calgon](https://www.desertcart.dk/products/666834497-crystal-cal-premium-activated-carbon-300gram-reef-aquarium-grade-calgon)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-23*