---
product_id: 49915793
title: "Premium 4KG Natural Volcanic Lava Rocks - 100% Pure Fire Pits & Gas Grills Stones Hand-Sorted (4-8CM)- Ideal for BBQ, Aquariums, and Plants"
brand: "black rock grill"
price: "฿7049"
currency: THB
in_stock: true
reviews_count: 13
category: "Black Rock Grill"
url: https://www.desertcart.co.th/products/49915793-premium-4kg-natural-volcanic-lava-rocks-100-pure-fire-pits
store_origin: TH
region: Thailand
---

# multi-use: BBQ, aquarium, plants 4kg pure lava power 4-8cm handpicked size Premium 4KG Natural Volcanic Lava Rocks - 100% Pure Fire Pits & Gas Grills Stones Hand-Sorted (4-8CM)- Ideal for BBQ, Aquariums, and Plants

**Brand:** black rock grill
**Price:** ฿7049
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your fire game with pure volcanic power!

## Quick Answers

- **What is this?** Premium 4KG Natural Volcanic Lava Rocks - 100% Pure Fire Pits & Gas Grills Stones Hand-Sorted (4-8CM)- Ideal for BBQ, Aquariums, and Plants by black rock grill
- **How much does it cost?** ฿7049 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/49915793-premium-4kg-natural-volcanic-lava-rocks-100-pure-fire-pits)

## Best For

- black rock grill enthusiasts

## Why This Product

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

## Key Features

- • **Flare-Up Reduction:** Natural insulation properties reduce flare-ups, giving you safer, more controlled grilling sessions.
- • **Eco-Friendly & Odorless:** All-natural, scent-free lava rocks that enhance your setup without any chemical interference.
- • **Turbocharge Your Flames:** Larger 4-8cm rocks optimize gas flow for flames twice as high and visually stunning fire pits.
- • **Pure & Handpicked Quality:** 100% natural lava rocks, meticulously sorted to ensure premium consistency and performance.
- • **Versatile Aesthetic & Function:** Perfect for BBQ grills, fire pits, aquariums, and plant displays—blend style with utility effortlessly.

## Overview

These 4kg handpicked lava rocks, sized between 4-8cm, are 100% natural and perfect for enhancing BBQ grills, fire pits, aquariums, and plant displays. They improve gas flow for bigger flames, reduce flare-ups, and add a stylish, functional touch to your setup.

## Description

100% pure, hand-sorted lava rocks in the 4-8cm size range for enhancing flavor, reducing flare-ups, insulating, and decorative purposes in aquariums and plant displays.

Review: Perfect - Perfect for my gas bbq
Review: The larger rockes turbo charges our gas firepit - fire pit came with small stones that were OK but limited the flow of gas so flames were just so so. Bought these bigger rocks and now looks amazing as flames can breath and are now twice as high . Wish I had taken a before an after

## Features

- 4KG Lava Rocks, 100% Lava, Handpicked
- Size 4cm - 8cm Approx

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ECXW86A |
| Best Sellers Rank | 5,110 in Garden ( See Top 100 in Garden ) 22 in Barbecuing Charcoal |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,108) |
| Date First Available | 6 Aug. 2013 |
| Item model number | 936 |
| Manufacturer | Black Rock Grill |
| Material type | Lava Rock |
| Part number | 936 |
| Product Dimensions | 30 x 23.01 x 15.01 cm; 4 kg |
| Scent | No scent |

## Product Details

- **Brand:** Black Rock Grill
- **Flavour:** Coffee
- **Item form:** Irregular
- **Item weight:** 4000 Grams
- **Material:** Lava Rock

## Images

![Premium 4KG Natural Volcanic Lava Rocks - 100% Pure Fire Pits & Gas Grills Stones Hand-Sorted (4-8CM)- Ideal for BBQ, Aquariums, and Plants - Image 1](https://m.media-amazon.com/images/I/711zXo9TKqL.jpg)

## Questions & Answers

**Q: Can you put these in a firepit and simply light the rocks? No gas needed?**
A: Hi. The lava rocks do go into the fire pit. But you need to light the gas to heat the lava rocks. The lava rocks are not combustible. The lava rocks retain the heat and distribute the heat.

**Q: Could lava rocks be used for charcoal bbq please?**
A: Is the BBQ Gas? if so yes :)

**Q: Is this safe too use in a aquarium filter ?**
A: Indeed it is safe to use in aquariums. Prewash the rocks before use to get rid of the dust from the stones. We sell a huge amount to aquarium owners. Regards Peter

**Q: Can these be used below the gas burners to catch fat?**
A: I lined my fat tray with strong foil then put a layer of cat litter to absorb the fat, easy clean up after a few uses.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by D***S on 11 January 2026*

Perfect for my gas bbq

### ⭐⭐⭐⭐⭐ The larger rockes turbo charges our gas firepit
*by S***H on 8 August 2025*

fire pit came with small stones that were OK but limited the flow of gas so flames were just so so. Bought these bigger rocks and now looks amazing as flames can breath and are now twice as high . Wish I had taken a before an after

### ⭐⭐⭐⭐ Other half is VERY happy with these
*by S***T on 30 May 2020*

Purchased for other half’s gas barbecue. Perfect for our needs and gives our BBQs that Smokey BBQ flavour with the convenience of gas. Arrived very quickly and great value for money. Great for our needs. Chunkier than the other BBQ lava rocks we have purchased meaning they don’t slip through the grill.

## Frequently Bought Together

- Premium Volcanic Lava Rocks – 9 lbs | 100% Pure, Hand-Sorted 1-3” Stones for Fire Pits, Gas Grills, Aquariums, and Plants
- Mr. Fireglass Lava Rock Granules, Large Red Volcanic Lava Rock for Fire Bowls, Fire Pits, Gas Log Sets, Indoor or Outdoor Fireplaces - 10 Pounds (2.75"-5")

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**Shop now:** [https://www.desertcart.co.th/products/49915793-premium-4kg-natural-volcanic-lava-rocks-100-pure-fire-pits](https://www.desertcart.co.th/products/49915793-premium-4kg-natural-volcanic-lava-rocks-100-pure-fire-pits)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-24*