---
product_id: 28820356
title: "Grodan RW3075 Classic 30/75 Slab (Wet), 12\" x 3\", case of 8, Silver"
brand: "grodan"
price: "¥125633"
currency: JPY
in_stock: true
reviews_count: 1
url: https://www.desertcart.jp/products/28820356-grodan-rw3075-classic-30-75-slab-wet-12-x-3
store_origin: JP
region: Japan
---

# 12" x 3" size Fast drainage Wet/dry technology Grodan RW3075 Classic 30/75 Slab (Wet), 12" x 3", case of 8, Silver

**Brand:** grodan
**Price:** ¥125633
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate Your Growing Game with Grodan!

## Quick Answers

- **What is this?** Grodan RW3075 Classic 30/75 Slab (Wet), 12" x 3", case of 8, Silver by grodan
- **How much does it cost?** ¥125633 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/28820356-grodan-rw3075-classic-30-75-slab-wet-12-x-3)

## Best For

- grodan enthusiasts

## Why This Product

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

## Key Features

- • **Popular Among Hobbyists:** The go-to choice for hydroponic enthusiasts seeking optimal results.
- • **User-Friendly Packaging:** Comes in UV resistant poly sleeves for hassle-free handling.
- • **Ultimate Hydroponic Solution:** Designed for larger crops like peppers and tomatoes.
- • **Innovative Moisture Management:** Top layer retains moisture while the bottom layer drains efficiently.
- • **Versatile for Long-Term Growth:** Perfect for extensive root systems, ensuring robust plant health.

## Overview

The Grodan RW3075 Classic Slab is a premium hydroponic growing medium designed for larger crops. Measuring 12" x 3" and packaged in a case of 8, these slabs feature advanced wet/dry technology for optimal moisture distribution, making them the top choice for hydroponic hobbyists.

## Description

Grodan RW3075 Classic 30/75 Slab (Wet), 12" x 3", case of 8, Silver

## Features

- Grodan slabs - the final stage of planting with growing blocks are the Grodan slabs. These slabs come in clearly marked UV resistant poly sleeves for ease of use.
- Recommended for larger, long term crops with extensive roots like peppers, tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs.
- Grodan expert is the slab that drains The fastest because of its vertical fibers. By far the most popular slab for the hydroponic hobbyist market.
- Grodan Master is a special wet/dry slab. The top layer is thicker, which stays Wetter, while the bottom layer stays drier. In effect It defies gravity, allowing more even distribution of moisture throughout the slab.

## Images

![Grodan RW3075 Classic 30/75 Slab (Wet), 12" x 3", case of 8, Silver - Image 1](https://m.media-amazon.com/images/I/613GcJGZm4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great
  

*by F***E on Reviewed in the United States on May 19, 2023*

Arrived in great. Condition

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**Shop now:** [https://www.desertcart.jp/products/28820356-grodan-rw3075-classic-30-75-slab-wet-12-x-3](https://www.desertcart.jp/products/28820356-grodan-rw3075-classic-30-75-slab-wet-12-x-3)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*