--- product_id: 451874826 title: "Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG)" brand: "black rock grill" price: "385.44 DT" currency: TND in_stock: false reviews_count: 6 url: https://www.desertcart.tn/products/451874826-black-rock-grill-4kg-lava-for-gas-bbq-fire-pit store_origin: TN region: Tunisia --- # Natural mulch that retains moisture & suppresses weeds Enhances aquarium filtration & water quality 4KG pure lava rock for consistent heat Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG) **Brand:** black rock grill **Price:** 385.44 DT **Availability:** ❌ Out of Stock ## Summary > 🔥 Ignite your grill and garden game with pure volcanic power! ## Quick Answers - **What is this?** Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG) by black rock grill - **How much does it cost?** 385.44 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/451874826-black-rock-grill-4kg-lava-for-gas-bbq-fire-pit) ## 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 - • **Aquarium’s Best Friend:** Improve water filtration and nitrate removal while adding a sleek, natural look to your aquatic environment. - • **Grill Smarter, Not Harder:** Reduce flare-ups, cut gas usage, and enhance smoky flavors by swapping out ceramic briquettes for these premium lava rocks. - • **Consistent Heat, Every Time:** Hand-sorted 100% pure lava rocks ensure uniform size and optimal heat distribution for flawless grilling and fire pit performance. - • **Eco-Friendly Garden Upgrade:** Use as natural mulch to retain soil moisture, suppress weeds, and slowly release heat to boost plant health and garden aesthetics. - • **Elevate Your Outdoor Ambiance:** Create mesmerizing fire pit glows and protect your chiminea with durable, heat-retentive lava stones that last through all seasons. ## Overview Black Rock Grill 4KG Lava Rocks are premium, hand-sorted volcanic stones designed for versatile use in gas BBQs, fire pits, aquariums, chimineas, and gardens. These uniform, dust-free rocks optimize heat distribution, reduce flare-ups, enhance water filtration, and improve soil moisture retention, making them a must-have for millennial professionals seeking efficient, stylish, and eco-conscious outdoor living solutions. ## Description Lava rocks have many uses and benefits that people are starting to see: -Barbecue Lava Rocks, When lava rocks are used in barbecues, they reduce fat fires whilst enhancing the smoky flavour of a delicious barbecued meal. Just make sure that you replace clogged up rocks with a fresh new layer of lava as this will: improve the heat distribution, improve the heat of the cook, Use less gas, Get rid of any nasty smells, Reduce flare up. -Chimineas and fire pits using Lava Rocks Using lava rocks in a Chiminea insulates and protects. It is simple to do, just place a layer of rock into the pot belly of the chiminea and then build your fire on top. This protects the clay from direct heat and adds another layer of insulation to generate more heat from your chiminea. Lava rocks are fantastic in fire pits.Functionally, fire pit lava rock provides a semi-permeable barrier that protects fire pit burner components from the elements, facilitates the even distribution of flame and the resulting heat, and shields the gas burner from direct exposure to the surface flame. Cosmetically, lava rock is a clean, low-maintenance, durable and natural-looking fire pit surface media that retains its natural colour under a combination of high-heat and potentially harsh weather conditions. -Lava Rocks for Mulch on the garden In addition, they can also be used in the garden as mulch. The lava absorbs the heat during the day and releases it at night and is excellent for weed suppression. It also slows the evaporation of moisture from your soil. Lava Rocks are available in Ton bags by request -Aquarium Lava Rocks, Using in ponds, aquariums and fish bowls The lava rocks are also ideal for freshwater ponds, aquariums and fish bowls as it helps to remove Nitrates and improve the quality of the water. They are also very decorative. Dimensions of the lava rocks Each rock is between 4-8cm / 40mm-80mm(may vary) 2kg bag will cover APPROX 35cm x 25cm Review: It’s great - Using it for grill Review: Buen producto - Perfecto, desde que cambié las piedras la bbq como nueva ## Features - Hand Sorted for Consistency: 100% pure lava rocks, free from dust or unwanted materials. Each rock is carefully selected to ensure uniform size and optimal performance across various applications. - Fire Pit Magic: Ignite your evenings with our lava rocks for fire pits. Experience the mesmerizing glow and warmth these stones provide, perfect for outdoor gatherings or a relaxing night under the stars. - Grill to Perfection: Swap out your standard ceramic briquettes for gas grill with Black Rock Grill grill lava rocks. Your steaks, burgers, and veggies will cook more evenly, enhancing your grilling experience. - Aquarium Enhancer: Black Rock Grill lava rock aquarium stones improve water filtration, providing a healthier environment for your aquatic friends. They also add a natural aesthetic appeal to your aquarium setup. - Garden Upgrade: Interested in landscaping Black Rock Grill lava rocks serve as excellent decorative stones, adding a unique touch to your garden. They also help with water drainage and can benefit your plants' health. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00ECXW86A | | Best Sellers Rank | #50,406 in Pet Supplies ( See Top 100 in Pet Supplies ) #170 in Aquarium Décor Rocks | | Brand | Black Rock Grill | | Brand Name | Black Rock Grill | | Color | Brown | | Colour | Brown | | Customer Reviews | 4.5 out of 5 stars 2,006 Reviews | | Fuel Type | Natural Gas | | Fuel type | Natural Gas | | Item Weight | 4000 Grams | | Item weight | 4000 Grams | | Manufacturer | Black Rock Grill | | Manufacturer Part Number | 936 | | Material | Lava Rock | | Material Type | Lava Rock | | Model Number | 936 | | Number of Items | 1 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Black Rock Grill - **Flavour:** Smoky - **Item form:** Irregular - **Item weight:** 4000 Grams - **Material:** Lava Rock ## Images ![Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG) - Image 1](https://m.media-amazon.com/images/I/71lFdFJ+VRL.jpg) ![Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG) - Image 2](https://m.media-amazon.com/images/I/61HvWunbgdL.jpg) ![Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG) - Image 3](https://m.media-amazon.com/images/I/819t2FAHwPL.jpg) ![Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG) - Image 4](https://m.media-amazon.com/images/I/81U3vbrzcfL.jpg) ![Black Rock Grill 4KG Lava for Gas BBQ, Fire pit, Aquarium, Chiminea (4KG) - Image 5](https://m.media-amazon.com/images/I/81Ms6BuG6ZL.jpg) ## Questions & Answers **Q: Are these light weight for their size? How many rocks per 9 pounds?** A: Absolutely, the Premium Volcanic Lava Rocks are indeed lightweight for their size. A 9-pound bag typically contains about 30 to 40 rocks. This quantity is sufficient to cover an area approximately 17 inches by 14 inches. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It’s great *by I***A on 26 July 2023* Using it for grill ### ⭐⭐⭐⭐⭐ Buen producto *by C***N on 3 April 2020* Perfecto, desde que cambié las piedras la bbq como nueva ### ⭐⭐⭐⭐⭐ Amazingggg *by B***R on 28 April 2026* If you like to do aqua scaling but this now u get sooooo much rock for so cheap yes it’s a pain in the ass to wash but well worth it buy it now !!!!! I will be buying about 10 more bags to do my koi pond this is genuinely one of the best finds as a his breeder and aqua scaper but it nowwwwwww ## 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") --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/451874826-black-rock-grill-4kg-lava-for-gas-bbq-fire-pit](https://www.desertcart.tn/products/451874826-black-rock-grill-4kg-lava-for-gas-bbq-fire-pit) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-13*