SKU: 22045806375

Greengrow Upuper Rockwool 40x8x4 Slab - CS 75(1000) - x 4 pcs

Sale price$36.00 Regular price$40.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Greengrow Upuper Rockwool 40x8x4 Slab - CS 75(1000) - x 4 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(1000)Single size: 40 *8 *4 (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(1000)
Single size: 40 *8 *4 (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: 4 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: 22045806375

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Jocelyn
Los Angeles, US
★★★★★ 4
Great quality for price
Material Type: Recycled Polyester, Color: Red Stripe, Size: XX-Large
Very impressed with the shirt quality, especially for such a low price. Sizing is accurate.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
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Shawn SnoMan Thompson
Lowell, US
★★★★★ 5
For work or casual wear, this polo is a great choice.
Material Type: Recycled Polyester, Color: Port Stripe, Size: X-Large
I really like this polo. I've been wearing it once a week or every other week since November. Its very comfortable and breathable. This polo feels like it should last a while. The fit is good. I typcally wear XL and this XL fits great. I've pruchased it in both burgundy and black so far. I definitely recommend this shirt. For work or casual wear, this will look good.
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Reviewed in the United States on January 11, 2026
T
Verified Purchase
Tech Dad
Birmingham, US
★★★★★ 5
Great value: These are my go-to work from home shirt
Material Type: Recycled Polyester, Color: Blue, Size: X-Large
I’ve been pleasantly surprised by these shirts and wear them weekly for Zoom calls, since I’m still working from home these days. I figured at the price point it was worth trying them out, and now I’ve bought several in different colors. They aren’t super soft, but they are comfy and look nice. I’m 6’1” ~220 pounds, and the XL slim fit still has plenty of room. I imagine the regular cut is incredibly boxy and oversized. The difference between polyester vs recycled polyester is inconsequential. I typically buy expensive golf shirts, and these definitely aren’t as nice. They are a fraction of the cost though and a great “beater” work shirt / hang out shirt. It’s nice wearing something that looks and feels decent, but if something happens to it, you can toss and it and pick up another for the cost of a chipotle burrito.
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Reviewed in the United States on May 29, 2022
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Verified Purchase
Espresso
Louisville, US
★★★★★ 3
Great price, not great quality
Material Type: Recycled Polyester, Color: Black, Size: Small
Simple, straight forward all black polo. I am a size medium woman (with some room since I don't like form-fitting) and bought a men's small. Fits perfectly for my frame. Long enough to tuck in for my part-time extra weekend job uniform. Also suitable for the golf course. A little thin, and if you hold it up to light you can sort of see through it. *Not* flowy, soft and smooth fabric like a rash guard/sun shirt - more structured than that. But it's cool and does the job for the price under $10.
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Reviewed in the United States on August 13, 2024
K
Verified Purchase
Ken Strech
Pawtucket, US
★★★★★ 5
Recommend
Material Type: Recycled Polyester, Color: Dark Navy, Size: X-Large
Great fit, right price
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Reviewed in the United States on March 18, 2026

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