---
product_id: 276975940
title: "Grower's EdgeBlock Covers, Blocks Light from Growing Media, Reduces Algae and Pest Problems, Use with Rockwool and Other Growing Media, Each Pack Contains 40 Covers, Covers are 6-inches"
brand: "grower's edge"
price: "HK$567"
currency: HKD
in_stock: true
reviews_count: 4
url: https://www.desertcart.hk/products/276975940-growers-edgeblock-covers-blocks-light-from-growing-media-reduces-algae
store_origin: HK
region: Hong Kong
---

# Grower's EdgeBlock Covers, Blocks Light from Growing Media, Reduces Algae and Pest Problems, Use with Rockwool and Other Growing Media, Each Pack Contains 40 Covers, Covers are 6-inches

**Brand:** grower's edge
**Price:** HK$567
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Grower's EdgeBlock Covers, Blocks Light from Growing Media, Reduces Algae and Pest Problems, Use with Rockwool and Other Growing Media, Each Pack Contains 40 Covers, Covers are 6-inches by grower's edge
- **How much does it cost?** HK$567 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/276975940-growers-edgeblock-covers-blocks-light-from-growing-media-reduces-algae)

## Best For

- grower's edge enthusiasts

## Why This Product

- Trusted grower's edge brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Grower's Edge Block Covers block light from reaching the growing media. This helps to reduce algae and pest problems in Rockwool and other growing media. Easily set up the covers by placing the white side up and using a small object, like a toothpick, to hold the cover in place. Each package of Grower's Edge Block Covers contains 40 covers.

## Features

- About this item     Grower's Edge Block Covers block light from reaching the growing media     Helps reduce algae and pest problems     Use with Rockwool and other growing media     Each package contains 40 covers     Dispose of each cover after use

## Images

![Grower's EdgeBlock Covers, Blocks Light from Growing Media, Reduces Algae and Pest Problems, Use with Rockwool and Other Growing Media, Each Pack Contains 40 Covers, Covers are 6-inches - Image 1](https://m.media-amazon.com/images/I/81P94FNLCyL.jpg)
![Grower's EdgeBlock Covers, Blocks Light from Growing Media, Reduces Algae and Pest Problems, Use with Rockwool and Other Growing Media, Each Pack Contains 40 Covers, Covers are 6-inches - Image 2](https://m.media-amazon.com/images/I/61tP4u5Kj9L.jpg)
![Grower's EdgeBlock Covers, Blocks Light from Growing Media, Reduces Algae and Pest Problems, Use with Rockwool and Other Growing Media, Each Pack Contains 40 Covers, Covers are 6-inches - Image 3](https://m.media-amazon.com/images/I/61BlQ0lAPiL.jpg)
![Grower's EdgeBlock Covers, Blocks Light from Growing Media, Reduces Algae and Pest Problems, Use with Rockwool and Other Growing Media, Each Pack Contains 40 Covers, Covers are 6-inches - Image 4](https://m.media-amazon.com/images/I/51AS9Xmme0L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐ 







  
  
    Not what I thought
  

*by F***O on Reviewed in the United States on 11 July 2020*

I wish I could return them.

### ⭐⭐⭐⭐⭐ 







  
  
    A+
  

*by M***E on Reviewed in the United States on 15 April 2020*

A+Used to cover my rockwool cubes to stop from getting algae and it worked

### ⭐⭐⭐⭐⭐ 







  
  
    Great buy
  

*by C***Y on Reviewed in the United States on 14 March 2017*

Kinda cheap, but well worth it. Use toothpicks  to hold down, other than that they work great.

---

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**Shop now:** [https://www.desertcart.hk/products/276975940-growers-edgeblock-covers-blocks-light-from-growing-media-reduces-algae](https://www.desertcart.hk/products/276975940-growers-edgeblock-covers-blocks-light-from-growing-media-reduces-algae)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-06*