SKU: 230533115

Greengrow Upuper Rockwool 36x6x3 Slab - CS 75(900) - x 6 pcs

Sale price$36.00 Regular price$40.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Greengrow Upuper Rockwool 36x6x3 Slab - CS 75(900) - x 6 pcsProduct Description UPupergrow slab provides the final stage for growing a large plant. A larger volume provides enough space for cannabis plants to grow. Fast rooting and vigorous growth throughout the entire growing cycle improve cannabis plant health, better resilience, and higher yields. Product SpecificationProduct model: CS75(900)Single size: 36 *6 *3 (L*W*Hinch))Pre cut hole: either without, or with 75 mm 100 mm, 4 holes, or customizableFilm:

 

Product Description

UPuper®grow slab provides the final stage for growing a large plant. A larger volume provides enough space for cannabis plants to grow. Fast rooting and vigorous growth throughout the entire growing cycle improve cannabis plant health, better resilience, and higher yields.

Product Specification
Product model: CS75(900)
Single size: 36 *6 *3 (L*W*H(inch))
Pre-cut hole: either without, or with 75 mm/100 mm, 4 holes, or customizable
Film: Have white film wrapped.
Package: 6 pcs/case
*Any other size request, please contact us online!


Product Parameter (Property: Value)

  • Sink time: <10s
  • Bond strength: NA
  • pH: <7.5
  • Organic matter content: <1.5%
  • Content of toxic and harmful heavy metals: Not detectable levels
  • Meet GMP Hygiene requirements (Bioburden test): No micro-organisms

Product Advantage
1. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention.
2. The top can be customized to cut the opening, put the grow cubes on it after tearing.
3. Choice of no-hole or precut-hole versions.
4. A larger volume provides enough space for cannabis plants to grow.
5. Inert hydrophilic fibre technology, perfect water retention.
6. High resaturation capacity.
7. Automated production, consistent product performance, providing a favorable
environment for cannabis growth while ensuring consistent cannabis growth,
convenient management, and unified harvest.


Application
Recommended for larger, long term crops with extensive roots like cannabis, peppers,
tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs.


Practice TIPS
1. You need pre-soak them before use.
2. Adjust pH of 5.5-6.5 for cannabis planting.
3. You can remove the wrapping of the grow slab, cut it and mix it with the soil to improve the air permeability of the soil.

Please contact us for the usage guidance video!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 230533115

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 2152 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Big FLO
Charlottesville, US
★★★★★ 5
Great looking boots for evening wear
Size: 9.5, Color: Tan Full Grain, Size: 9.5, Color: Tan Full Grain
These arrived today and fit to size! They look amazing and so far seem comfortable. The quality seems good but time will tell as these are my going out type of footwear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
G
Verified Purchase
Geoff G.
Alexandria, US
★★★★★ 4
Top quality for the price but a little tight in the toe box
Size: 8.5, Color: Black Full Grain
A little tight around the toe box for me and I don’t have a particularly wide foot. But the quality is great and the look is awesome. Hoping they stretch out a bit with some wear!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Good fit, good insole.
Size: 10.5, Color: Tan Full Grain
Excellent footwear. Foster
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
C
Verified Purchase
Chandler Campbell
Dallas, US
★★★★★ 5
This product is worth every penny of its price.
Size: 11.5, Color: Tan Full Grain
I recently purchased these boots and I must say they fit very comfortably. Johnston & Murphy is my new brand in footwear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
J
Verified Purchase
J.Dean.M
Bozeman, US
★★★★★ 5
Everyday Jeans With A Great Blend
Size: 32W x 33L, Color: Medium Wash
These are my new daily drivers. I got the Medium Wash in 32W x 33L, and the size and fit are true to size—a modern slim fit that's not too tight. The key is the stretchiness; there's just enough elastane in the material to make sitting, driving, and bending incredibly comfortable, unlike traditional stiff denim. The softness is immediately noticeable compared to raw denim. For long-term durability, the stretch blend should hold up well with normal wear. The functionality is perfect for casual work environments or weekend outings. Excellent value for a comfortable, stylish jean.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025

recommand products