SKU: 20381949953

Cultiwool 4" x 4" x 2.5" Block (216 Blocks/Case) - Cultilene

Sale price$162.79 Regular price$180.88
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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

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Description

Cultiwool 4" x 4" x 2.5" Block (216 Blocks/Case) - CultileneCultiwool 4" x 4" x 2. 5" Block (216 Blocks Case) Cultilene Cultiwools growing blocks are unique in the most efficient way. That has everything to do with the consistency of our products. Quick and easy uptake of water and the homogeneous distribution of water throughout the substrate are one of the most important features of a growing medium. Not only can you expect the highest quality stone wool in the market, but Cultiwool is also the first to

Cultiwool 4" x 4" x 2.5" Block (216 Blocks/Case) - Cultilene

Cultiwools’ growing blocks are unique in the most efficient way. That
has everything to do with the consistency of our products. Quick and
easy uptake of water and the homogeneous distribution of water
throughout the substrate are one of the most important features of a
growing medium.


Not only can you expect the highest quality stone wool in the market,
but Cultiwool is also the first to introduce the ‘donut ring’ for the
retail market to even further improve water distribution. This is in
addition to the highly appreciated cross grooves to improve water flow
under the block, and the black/white foil to prevent algae growth.


The Cultiwool substrate blocks are provided with drain grooves at the
bottom to improve the waterflow under the block. This is especially
useful when the substrate blocks are placed on cultivation tables and
concrete floors. Another benefit of the drain grooves under the block is
that it will limit the contact surface with the ground. This will avoid
bringing deseases in to the plant via weak roots often in combination
with too high temperatures.


As first in the industry, Cultiwool will provide the substrate with a
donut ring as well, a water chamber around the plug hole to place your
drippers. With the donut ring you will achieve an even more homogeneous
distribution of the water throughout the block. A welcome second
advantage is that you can not make any mistake anymore with the
positioning of the drippers in the block.

Cultiwool 4" x 4" x 2.5" Rockwool Blocks are sold by the case.


Specifications

  • Stonewool Block
  • 1 Plug Hole 38mm / 40mm
  • Drainage Width Grooves
  • 4" x 4" x 2.5" (100mm x 100mm x 65mm)
  • 216 Blocks/Case
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: 20381949953

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4.8 ★★★★★
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Debbie
Whiting, US
★★★★★ 4
The glow doesn’t last long, not super bright.
Style: Recharges, Size: Medium
I charge my glow in the dark balls with a black light flashlight, this one was not very bright, and it did not hold the charge very long. Also, with it being green, it was hard for my dog to find in the grass.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
H
Verified Purchase
Hiker-A-Rama
Lexington, US
★★★★★ 5
Squeaks and glows
Style: Recharges, Size: Medium
Squeaks. Glows, and labs love them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026
M
Verified Purchase
Mustang_Mark
Lexington, US
★★★★★ 3
good but no glow
Style: Recharges, Size: Medium
good ball but as others say, the glow in the dark really isn't there.
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Reviewed in the United States on May 14, 2026
S
Verified Purchase
Steve just Steve
Massapequa, US
★★★★★ 5
Good grip glow ball
Style: Recharges, Size: Medium
Love this glow in the dark Chuck IT. Get a black light flashlight to charge the neon instantly. Good texture gives the dog better grip than the smooth all white glow in the dark chuck it balls.
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Reviewed in the United States on January 9, 2026
S
Verified Purchase
Stephanie Dutey
Waukegan, US
★★★★★ 5
Finally a Toy My Pitbull Hasn’t Destroyed in 5 Minutes
Color: Blue+Red, Color: Blue+Red
I have a 65 lb pitbull who destroys most toys almost immediately, so I’m always skeptical when products claim to be “indestructible.” Most toys last maybe a few minutes in my house before pieces are everywhere. These have actually held up surprisingly well. The material feels durable and thick enough to handle really aggressive chewing, and so far my dog hasn’t been able to destroy them like he does with most other balls and squeaky toys. That alone makes these worth it to me. I also really like the size. They’re large enough that I don’t have to constantly worry about him accidentally swallowing them or choking while playing, which is a huge plus for bigger dogs. The squeaker inside also keeps him interested longer since he usually gets bored quickly with toys that don’t make noise or bounce around well. If you have a strong chewer or larger dog and you’re tired of replacing destroyed toys constantly, these are definitely worth trying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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