SKU: 40454140153

Greengrow Upuper 8x8x8 Block - CM 20 PRO - Case (18 Pcs)

Sale price$89.10 Regular price$99.00
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Greengrow Upuper 8x8x8 Block - CM 20 PRO - Case (18 Pcs)Product Description UPuper8 inch Grow block is the largest block ever produced! The 8 inch cubes have twice the volume of the 6 inch grow blocks, it is big enough to grow a large plant for its entire life. It is usually used in the final stage of cannabis planting. Product SpecificationProduct model: CM 20PROSingle size: 8 *8 *8 (L*W*Hinch))"Hole: Usually don't have hole. Accept custom hole, Size: 1. 57"",H1. 57"""Grooves: HaveFilm: Have silver white

Product Description

UPuper®8 inch Grow block is the largest block ever produced! The 8 inch cubes have twice the volume of the 6 inch grow blocks, it is big enough to grow a large plant for its entire life. It is usually used in the final stage of cannabis planting.

Product Specification
Product model: CM 20PRO
Single size: 8 *8 *8 (L*W*H(inch))
"Hole: Usually don't have hole.
Accept custom hole, Size: φ1.57"",H1.57"""
Grooves: Have
Film: Have silver/white film wrapped.
Package: 18 pcs/carton
*Any other size request, please contact us online!


Product Parameter (Property: Value)

  • Bond strength: NA
  • Sink time: <25s
  • Water absorption rate: >=900%
  • Organic matter content: <1.5%
  • Meet GMP Hygiene requirements (Bioburden test): No microorganisms
  • Content of toxic and harmful heavy metals: Not detectable levels

Product Advantage
1. No pre-cut hole means plants can sit on top easily, you can put the mini block with plant directly on top of the CM 20PRO grow block.
2. Packaged in photodegradable, UV-resistant, sleeves for comfortable handling
and algae prevention."
3. More than twice the amount of wool as our 6 inch Block, it can be able to
support very large plants and even small trees throughout their lifecycle."
4. It is simple to calculate irrigation needs due to their uniform size and dry weight.
5. Grooves can facilitate water drainage and provide air pruning on root system.
6. After being sterilized at a high temperature higher than 1500 degrees Celsius,
the growing block does not carry pathogens, which provides a healthy growth
environment for cannabis.


Application
Usually used in the final stage of cannabis planting. It can be able to
support very large plants and even small trees throughout their lifecycle.
Using combined with CP S40/CP S50 mini grow block.


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 block,cut it and mix it with the soil to improve the air permeability of the soil.

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: 40454140153

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4.2 ★★★★★
Based on 6 reviews
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DFS
Lowell, US
★★★★★ 5
Love this Sweater!
Size: Medium, Color: Black
Had my doubts, but this sweater is great! The color is great, follow the care instructions, and this sweater will not let you down. Feels great, fits great, no shrinkage, and looks excellent. Does it pill? Yes, expect it, but I also bought the BEAUTURAL Fabric Shaver and Lint Remover, Sweater Defuzzer with 2-Speeds. And it works beautifully not only on this sweater when needed, but also on my winter beanies and other clothes, which now look like new. My advice then. Buy the de-piller and buy this Sweater. I have purchased six, and I love these sweaters, especially now that I know how to best care for and keep them like new.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025
Y
Verified Purchase
Yoga MamaLV
San Leandro, US
★★★★★ 5
SEXY BLACK TURTLENECK SWEATER!
Size: X-Large, Color: Black
This is soft, looks amazing on my husband who is a big guy (6’2” @245) so not everything fits all the time. Sleeves are long enough, and the sweater looks great on him. Soft material, nice collar rate 10/10. Will try and get a nice pic of him in it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
S
Verified Purchase
Shooter
West Palm Beach, US
★★★★★ 4
Nice economy casual sweater,
Size: Large, Color: Off-white
The sweater is fine for the price, with correct fit. Arrived fast. Nice neutral cream/oatmeal color. It has a fairly loose open weave and is predominantly cotton, so it’s quite breathable and well suited for layering in cool but not truly cold weather. The knit is a little coarse, not really scratchy but not very soft. It’s a good value for what they charge. And fine for casual wear. But I ultimately decided to return it and spend a lot more to get a merino wool sweater because they are dressier, much warmer for weight, MUCH softer, and less bulky under a jacket. I like to wear mock turtlenecks under a sport coat in the fall and this sweater was a little too thick for that.
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Reviewed in the United States on December 8, 2023
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Verified Purchase
Ralph A.
Bozeman, US
★★★★★ 5
Soft and comfortable but runs a bit large
Size: Medium, Color: Off-white
I got this turtleneck in the off white color, and it looks very clean and easy to style. The color is true to what is shown and works well with casual or more dressed up outfits. The fabric feels soft and has a nice amount of stretch, which makes it comfortable to wear for longer periods without feeling stiff. The sweater feels lightweight but still warm enough for cooler days. It is not heavy or bulky, so it layers easily under jackets or coats. It also seems fairly wrinkle resistant. After wearing it and folding it, it still looked neat without needing much adjustment. In terms of fit, it does run a little big. I usually wear a medium, and while this one is still wearable, it feels slightly looser than expected, especially through the body. It is not a big deal, but I would probably order a smaller size next time for a more fitted look. The turtleneck itself sits comfortably around the neck and does not feel tight or irritating. Overall, it feels like a comfortable and easy to wear piece with good stretch, a nice lightweight feel, and a clean look. Just something to keep in mind on sizing if you prefer a closer fit.
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Reviewed in the United States on December 18, 2025
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Verified Purchase
Brittany
Houston, US
★★★★★ 3
Don’t recommend
Size: Medium, Color: Black
Got this as a last minute shirt for an event and it was roughly $12 on sale. The quality was ok, first wear was fine but it doesn’t hold up after washing and air drying. I don’t recommend unless only wearing once, there was a lot of shedding and pilling after the first wear. I’m rough 5 ft tall and about 140 lbs. and I got a M and it sat around my hips so unless your on the tall side this wouldn’t fit.
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Reviewed in the United States on January 7, 2026

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