--- product_id: 369270263 title: "6 inch Redrock Rockwool PRO Grow Block for Hydroponics | 4 Pack + Twin Canaries Chart" brand: "twin canaries liquid volume conversion chart" price: "413 Lei" currency: RON in_stock: true reviews_count: 2 url: https://www.desertcart.ro/products/369270263-6-inch-redrock-rockwool-pro-grow-block-for-hydroponics-4 store_origin: RO region: Romania --- # 6 inch Redrock Rockwool PRO Grow Block for Hydroponics | 4 Pack + Twin Canaries Chart **Brand:** twin canaries liquid volume conversion chart **Price:** 413 Lei **Availability:** ✅ In Stock ## Quick Answers - **What is this?** 6 inch Redrock Rockwool PRO Grow Block for Hydroponics | 4 Pack + Twin Canaries Chart by twin canaries liquid volume conversion chart - **How much does it cost?** 413 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/369270263-6-inch-redrock-rockwool-pro-grow-block-for-hydroponics-4) ## Best For - twin canaries liquid volume conversion chart enthusiasts ## Why This Product - Trusted twin canaries liquid volume conversion chart brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description 6 inch Redrock Rockwool PRO Grow Block for Hydroponics | 4 Pack + Twin Canaries Chart ## Features - Stone wool grow blocks are made in the USA RedRock Stonewool grow blocks PRO are priced for commercial agriculture production Wetting agent ensures nutrients are immediately plant available and high fiber density makes better use of water and fertilizers while allowing dry back Each block measures 6-Inch x 6-Inch x 5.3-Inch with 42/40 Hole Each order comes with a Twin Canaries Chart ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08C9DR6MN | | Best Sellers Rank | #152,990 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,065 in Garden Fertilizers | | Brand | Twin Canaries Liquid Volume Conversion Chart | | Color | Redrock | | Date First Available | October 10, 2021 | | Indoor/Outdoor Usage | Indoor | | Item Weight | 2.03 pounds | | Manufacturer | Twin Canaries Liquid Volume Conversion Chart | | Material Feature | Natural | | Moisture Needs | Moderate Watering | | Number of Items | 4 | | Number of Pieces | 4 | | Package Dimensions | 12.76 x 12.17 x 5.59 inches | | Product Care Instructions | Water | | Soil Type | Sandy Soil | | Special Feature | organic | | Sunlight Exposure | Full Sun | | Unit Count | 1 Count | ## Product Details - **Brand:** Twin Canaries Liquid Volume Conversion Chart - **Color:** Redrock - **Indoor/Outdoor Usage:** Indoor - **Item Weight:** 0.92 Kilograms - **Material Feature:** Natural - **Product Care Instructions:** Water - **Soil Type:** Sandy Soil - **Special Feature:** organic - **Sunlight Exposure:** Full Sun - **Unit Count:** 1 Count ## Images ![6 inch Redrock Rockwool PRO Grow Block for Hydroponics | 4 Pack + Twin Canaries Chart - Image 1](https://m.media-amazon.com/images/I/6164g2A8++L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐ The one I received was a little beat up *by J***N on Reviewed in the United States on 6 January 2022* Would've given 5 stars if I recieved one intact. There was a deep indent across the top and the plastic covering was ripped down one side. That plastic covering is there to block light so roots can grow, I had to duct tape it up so I could use it. ### ⭐⭐⭐⭐⭐ Good product *by D***N on Reviewed in the United States on 20 March 2022* I liked this product for its convenience it's easy to use and works great if you know how to use it and it is reasonably priced in just over a month my plants have grown 2' high and are Very healthy So far it has done its job very well (For Best Results maintain a very low humidity level to keep it on a more drying out side/ Higher humidity for a slower drying out period) ## Frequently Bought Together - 6 inch Redrock Rockwool PRO Grow Block for Hydroponics | 4 Pack + Twin Canaries Chart - Grodan Rockwool Delta GRO Blocks | 4" Cube - Pack of 6 | + Twin Canaries Chart - Grodan RW108004 Rockwool, 50-Pack Macro Plant Plugs, Green --- ## 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.ro/products/369270263-6-inch-redrock-rockwool-pro-grow-block-for-hydroponics-4](https://www.desertcart.ro/products/369270263-6-inch-redrock-rockwool-pro-grow-block-for-hydroponics-4) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-04-23*