SKU: 19349220665

Cultiwool 4" x 4" x 2.5" Blocks of Cultilene Rockwool - Case of 216

$91.35 $101.50
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Description

Cultiwool 4" x 4" x 2.5" Blocks of Cultilene Rockwool - Case of 216Description Cultiwool 4" x 4" x 2. 5" Block (216 Blocks Case) Cultiwool 4" x 4" x 2. 5" Block (216 Blocks Case): Cultiwools' growing blocks are unique in the most efficient way. That has everything to do with the consistency of the 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

Description
  • Cultiwool 4" x 4" x 2.5" Block (216 Blocks/Case)

  • Cultiwool 4" x 4" x 2.5" Block (216 Blocks/Case): Cultiwools' growing blocks are unique in the most efficient way. That has everything to do with the consistency of the 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 through 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.

  • Cultiwool 4" x 4" x 2.5" Rockwool Blocks are sold by the case.: Specifications
    • 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
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    • 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: 19349220665

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    4.6 ★★★★★
    Based on 9 reviews
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    M
    Verified Purchase
    Mom of Two
    Battle Creek, US
    ★★★★★ 4
    Great chair for the price!
    Color: Black
    Great chair for the price. Bought for my son and he loves it. Easy to assemble. Good support.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 6, 2026
    A
    Verified Purchase
    Amazon Customer
    Bozeman, US
    ★★★★★ 5
    Nice chair
    Color: Black
    This chair suits my needs for my home office. Less expensive than most I looked at and very comfortable.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 16, 2026
    A
    Verified Purchase
    Awesome reviews
    New York, US
    ★★★★★ 5
    Make sure you know the difference of high back vs mid back versions
    Color: Brown, Size: Mid Back
    I got a little confused by the reviews since they mix the high back version with the mid back. I thought the arm rests were adjustable and the back had some lean. Apparently only the high back version. That said, it is very nice. Its at least a hundred less than what you'd get at an office depot and it is generously sized and very supportive and comfortable. The assembly was relatively easy, instructions could have been a bit better. The piece connecting the seat and back doesn't sit flush with the mount that attached to the legs which is weird but it feels sturdy nonetheless. Overall it's very nice and the design is really cool, it looks like a 70s race car style seat. Exactly what I was looking for basically. I sort of wish I got the high back version for the adjustable arms and the ability to recline but it is a work chair for me mostly so I guess it doesn't need to lean back, even if it would be nice if it did.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 14, 2026
    A
    Verified Purchase
    Andre
    Carnegie, US
    ★★★★★ 5
    Excellent product. Great value, detailed parts and labels, outstanding construction.
    Color: Brown, Size: Mid Back
    Outstanding Purchase. The desk chair far exceeded my requirements and expectations. The price was so far below other office chairs that I was concerned that it would be shoddy, uncomfortable, cheap looking and impossible to put together. Materials were top grade, instructions were precise and all parts were market for location with "front and back" labels. Not a screw was missing or misaligned. Since my desk and office are in the Master, really impressed with the color and design. Very comfortable with good back support ,adjustment ease and arm support.. Bravo to your team!!!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 20, 2026
    H
    Verified Purchase
    H
    Lexington, US
    ★★★★★ 5
    Lovely and comfortable
    Color: Brown, Size: Mid Back
    Well made and easy to put together. I bought 2 and found them both to be well worth the money. You can tell the quality is there vs. other chairs I’ve bought online before.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026

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