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Description
coir potting mix block Coco Coir Bricks 10 LB Gro-Plus 5KGGro Plus Premium Coco Coir Brick (4 Pack) 5kg OMRI Organic Low EC Mushroom Substrate Bundle Stock up and save with this 4 Pack of Gro Plus 5kg Coco Coir Bricks, designed for bulk mushroom substrate preparation and high volume growing. Each 10lb compressed brick expands to approximately 80 quarts (20+ gallons) of fluffy, low EC growing medium delivering over 320 quarts (80+ gallons total) across the full bundle. Triple washed, OMRI listed organic, and
Gro-Plus Premium Coco Coir Brick (4-Pack) – 5kg OMRI Organic Low EC Mushroom Substrate Bundle
Stock up and save with this 4-Pack of Gro-Plus 5kg Coco Coir Bricks, designed for bulk mushroom substrate preparation and high-volume growing. Each 10lb compressed brick expands to approximately 80 quarts (20+ gallons) of fluffy, low EC growing medium — delivering over 320 quarts (80+ gallons total) across the full bundle.
Triple-washed, OMRI-listed organic, and pH neutral, this premium coco coir is ideal for CVG substrate blends, monotubs, grow bags, trays, and commercial fruiting systems. Whether you're running multiple bins or prepping large batches, this 4-pack ensures consistency, performance, and serious value.
Why Bulk Growers Choose This 4-Pack
- High-Volume Supply – Perfect for running multiple monotubs or commercial batches
- Triple-Washed & Low EC – Reduced salts for cleaner colonization
- OMRI Organic Listed – Approved for organic growing
- pH Balanced & Mushroom-Ready – Ideal base for CVG substrate
- Naturally Mold & Bacteria Resistant – Cleaner substrate foundation
- Space-Saving Compression – Stores compact, expands massively
Volume Breakdown
| Bundle Details | Amount |
|---|---|
| Bricks Included | 4 x 5kg (10 lb) Bricks |
| Expansion Per Brick | ~80 Quarts (20+ Gallons) |
| Total Expanded Volume | ~320 Quarts (80+ Gallons) |
| Best For | Multiple monotubs, bulk CVG batches, commercial grows |
Ideal for Mushroom Substrate & CVG Blends
Gro-Plus Coco Coir is one of the most trusted base materials for CVG substrate (Coco Coir, Vermiculite, Gypsum). Its low electrical conductivity and triple-washed processing reduce contamination risk while promoting strong, aggressive mycelial colonization.
Pair with sterilized grain spawn and quality vermiculite to create consistent bulk substrate for monotubs, grow bags, and fruiting chambers.
How to Use
- Place brick in tub or large pot.
- Add hot water and allow full hydration.
- Mix to proper field capacity.
- Blend with vermiculite and gypsum (optional for CVG).
- Load into tubs, trays, or grow bags.
Technical Specifications
| Material | 100% Coconut Coir |
| Certification | OMRI Listed Organic |
| pH Range | Approx. 5.8 – 6.5 (Neutral) |
| Electrical Conductivity | Low EC (Triple-Washed) |
| Total Compressed Weight | ~40 lbs (4 x 10 lb bricks) |
| Skill Level | Intermediate to Commercial |
Real Results from High-Volume Growers
Serious growers choose this 4-pack when running multiple fruiting chambers or preparing large CVG batches. The consistent hydration, clean processing, and reliable expansion make it a dependable foundation for high-yield mushroom cultivation.
Low Price Guarantee. No additional discount codes can apply. Need pallet quantities? Wholesale bulk options available.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy