---
product_id: 284649170
title: "Discover with Dr. Cool Replacement Rock Tumbler Barrel for NATIONAL GEOGRAPHIC Professional Series - 2lb"
brand: "discover with dr. cool"
price: "R1421"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/284649170-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national
store_origin: ZA
region: South Africa
---

# Low-noise design Leak-proof lid 2lb capacity Discover with Dr. Cool Replacement Rock Tumbler Barrel for NATIONAL GEOGRAPHIC Professional Series - 2lb

**Brand:** discover with dr. cool
**Price:** R1421
**Availability:** ✅ In Stock

## Summary

> ✨ Unleash Your Inner Geologist! ✨

## Quick Answers

- **What is this?** Discover with Dr. Cool Replacement Rock Tumbler Barrel for NATIONAL GEOGRAPHIC Professional Series - 2lb by discover with dr. cool
- **How much does it cost?** R1421 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/284649170-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national)

## Best For

- discover with dr. cool enthusiasts

## Why This Product

- Trusted discover with dr. cool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Polish Like a Pro:** Elevate your rock polishing game with a dedicated barrel for that flawless finish.
- • **Expand Your Collection:** Polish a variety of materials, from gemstones to sea glass, and showcase your unique finds.
- • **Satisfaction Guaranteed:** Shop with confidence knowing we stand behind our products 100%.
- • **Versatile Compatibility:** Perfectly fits National Geographic and Discover with Dr. Cool tumblers for seamless use.
- • **Whisper-Quiet Operation:** Enjoy a peaceful polishing experience with our low-noise construction.

## Overview

The Discover with Dr. Cool Replacement Rock Tumbler Barrel is a 2lb capacity, leak-proof barrel designed for professional-grade polishing. Compatible with National Geographic and Discover with Dr. Cool tumblers, it features a low-noise design and is perfect for polishing a variety of materials, ensuring a flawless finish every time.

## Description

Replacement Rock Tumbler Barrel for NATIONAL GEOGRAPHIC Professional Series - 2lb

## Features

- POLISHING BARREL – This rock tumbler barrel allows you to polish like a pro. We recommend having a dedicated barrel that is only used for the final step in the polishing process to avoid leaving any remnants of rougher grits that might scratch your gemstones and diminish the final polish.
- REPLACEMENT PART – Barrel is compatible with the National Geographic Professional Rock Tumbler and Hobby Series Tumbler as well as the Discover with Dr. Cool Professional Rock Tumbler and Hobby Series Tumbler
- QUIET AND CONVENIENT – Constructed of durable rubber and with a leak-proof lid, this barrel is designed to be low-noise and easy to use
- EXPAND YOUR ROCK COLLECTION – Use this barrel to polish rocks, gemstones, petrified wood, sea glass, and much more
- 100% SATISFACTION GUARANTEE – Discover with Dr. Cool is committed to ensuring customers are completely satisfied with their purchase

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Discover with Dr. Cool |
| Model Number | PROBARREL |
| Color | Black |
| Product Dimensions | 13.97 x 13.97 x 13.97 cm; 607.81 g |
| Capacity | 2 Pounds |
| Material | Wood, rubber |
| Special Features | Leak Proof |
| Item Weight | 608 g |

## Product Details

- **Brand:** Discover with Dr. Cool
- **Material:** Wood, rubber
- **Colour:** Black
- **Capacity:** 2 Pounds
- **Special features:** Leak Proof

## Images

![Discover with Dr. Cool Replacement Rock Tumbler Barrel for NATIONAL GEOGRAPHIC Professional Series - 2lb - Image 1](https://m.media-amazon.com/images/I/51Uj4itNpGL.jpg)

## Questions & Answers

**Q: Is the metal on this barrel stainless steel?**
A: I've been running this barrel for 5 weeks now and seems to be running good. Metal appears to be stainless steel to me since it seems to be heavier than what aluminum would be.

**Q: How to assemble Barrel**
A: It is assembled. Tub and lid. May have to screw on knob to lid.

**Q: where is this made?**
A: Our tumbler barrels are manufactured in China.

**Q: I am looking for a 3 lb barrel for a national geographic rock tumbler.  Fo you have any idea where to find one.**
A: Please contact help@thinkbluemarble.com for parts under warranty.

## Frequently Bought Together

- Discover with Dr. Cool Replacement Rock Tumbler Barrel for National Geographic Professional Series Tumbler and Hobby Series Tumblers, 2 Pound Rock Polisher Barrel with Leak-Proof Lid
- Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies
- National Geographic Rock Tumbler Kit - 3 Lb. Extra Large Capacity Barrel with 3-Speed Motor & 9-Day Timer, Kit Includes Rocks for Tumbling and Rock Polisher Grit, Rock Tumbler for Adults and Kids

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**Shop now:** [https://www.desertcart.co.za/products/284649170-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national](https://www.desertcart.co.za/products/284649170-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-13*