Grodan Macroplugs 1.5" 36/40 Loose (2000/Box)
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Grodan Macroplugs 1.5" 36/40 Loose (2000/Box)

Grodan Macroplugs 1.5" 36/40 Loose (2000/Box)

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GrodanSKU: B50220
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Grodan Macroplugs 1.5" 36/40 Loose (2000/Box)

The Grodan Macroplugs 1.5" 36/40 Loose (2000/Box) are professional stone wool propagation plugs designed for rooting cuttings, cloning, and young plant production.

Each Macroplug measures approximately 1.5 in (3.8 cm) in diameter × 1.57 in (4 cm) high. The plugs are supplied loose, making them easy to handle individually and place into propagation trays or compatible Grodan growing blocks. Each box contains 2,000 Macroplugs.

Key Benefits

  • Professional stone wool propagation plugs.
  • Round format designed for Grodan growing blocks.
  • Approx. 1.5 in (3.8 cm) diameter.
  • Approx. 1.57 in (4 cm) high.
  • 2,000 loose plugs per box.
  • Pre-slit for inserting cuttings.
  • Uniform stone wool structure.
  • Supports consistent moisture and aeration.
  • Easy to handle and transplant.
  • Suitable for commercial propagation and indoor horticulture.

What Are Grodan Macroplugs Used For?

Grodan Macroplugs are primarily designed for rooting cuttings and cloning.

The pre-cut slit helps position the cutting securely, while the stone wool provides a controlled balance of moisture and air during root development.

Once rooted, the Macroplug can be transferred into a compatible Grodan Gro-Block for continued growth.

Loose Format for Flexible Propagation

Unlike connected plug sheets, these Macroplugs are supplied individually in bulk.

This allows growers to place only the number of plugs required into trays or propagation systems and makes them convenient for manual transplanting and customized layouts.

Compatible With Grodan Gro-Blocks

The round Macroplug is designed to fit compatible openings in Grodan Gro-Blocks, allowing the rooted plug to be transplanted without removing the plant from its propagation substrate.

It can also be used with the 78-cell side of the Grodan Gro-Smart Tray.

Ideal Applications

  • Rooting cuttings
  • Cloning
  • Young plant propagation
  • Hydroponic systems
  • Indoor horticulture
  • Commercial greenhouses
  • Propagation facilities
  • Controlled-environment agriculture

Product Specifications

Specification Details
Brand Grodan
Product Macroplug 36/40
Type Stone wool propagation plug
Shape Round
Diameter Approx. 1.5 in (3.8 cm)
Height Approx. 1.57 in (4 cm)
Growing Media Stone wool
Plug Design Pre-slit
Packaging Loose
Quantity 2,000 plugs per box
Primary Use Rooting cuttings and propagation

How Do You Use Grodan Macroplugs?

Hydrate the Macroplugs according to your propagation and nutrient program.

Insert the cutting into the pre-cut slit and maintain suitable moisture, temperature, humidity, EC, and pH during rooting.

Once a healthy root system has developed, transplant the entire Macroplug into a compatible Grodan growing block or another suitable growing system.

Frequently Asked Questions

How many Macroplugs are included in one box?
Each box contains 2,000 loose Macroplugs.

What size are the Macroplugs?
Each plug is approximately 1.5 in (3.8 cm) round × 1.57 in (4 cm) high.

Are the Macroplugs pre-slit?
Yes. They include a slit designed to simplify insertion of cuttings.

Can they be used with Grodan Gro-Blocks?
Yes. Their round shape is designed to fit compatible Grodan Gro-Block openings.

Are they compatible with the Gro-Smart Tray?
Yes. You can use macroplugs with the 78-cell side of the Grodan Gro-Smart Tray.

Order Confirmation

As soon as your order is placed, an order confirmation will be sent to the email address you used to place the order. This means we have received your order and payment. Payment is captured as soon as the order is placed. In rare cases, if the product is on backorder or unavailable, we will contact you and ask if you would like to wait for the product to become available, switch your product, or have your payment refunded. If the item is available for shipment we will submit the order for processing and arrange shipment. Please see current estimated lead times on the product page for each product.

Shipping

Most products ship within 1 to 3 business days. Some items might take longer as they are delivered from our warehouse in Vancouver. As soon as we receive your tracking number, we will send it over to you.

Free Shipping

Free shipping is available across all provinces throughout Canada for orders over 149$.

International Orders

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or other couriers. Most quotes can be obtained at checkout. If not, you can email us at info@canadagrowsupplies.com for some more information on shipment. Items shipped internationally from the USA may have VAT, duties, taxes, and/or local charges due at delivery. These charges are the responsibility of the customer and not Canada Grow Supplies Inc.

Cancellations

If you need to cancel your order, we recommend reaching out to us ASAP. We charge a 2.9% (credit card), 3.5% (PayPal), 4.0% (PayPal International), 4.1% (American Express), or 6.5% (Shop Pay Installments or Sezzle) order cancellation fee after the order was received. We can accommodate most requests, but due to the different time zones and schedules that our warehouses ship from, sometimes the cancellation request may not reach the warehouse in time before the product ships. Once the item has been arranged to ship or has shipped, the package will be treated like a 'return' and is subject to ship-back fees and restocking fees. If you purchased 'Route Package Protection', this can not be refunded after the order has shipped.

Returns

In order to make sure you are completely satisfied, we can send you a return label within 14 days of receiving the order. This is to guarantee that you are happy with the product. Some products might require a 10-25% restocking fee. Please visit our full return policy.

Why Canada Grow Supplies?

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1. We’ve had thousands of shipped orders and satisfied customers.

We started our business in 2020 with the intention of creating a one-stop shop for growing supplies without letting customers wait for their orders. We saw the potential to serve customers of this industry way better than they’ve been treated in the past.

2. We’re a small, Canadian, family-owned business.

Our small team overlooks every customer and their orders to ensure they are satisfied with their products. We answer the phone and website chat, and if we don’t, we get back to you within 6 hours or less! We even throw in some freebies at random.

3. Free Discreet Shipping Available in Canada

We offer free shipping on all orders over 149$ Canada-wide. Many companies have a weight limit for free shipping, we don’t!

4. 100% Lowest Price on the Market - Price Match Guarantee

We keep the best prices on the market at all times. If the price respects the companies’ lowest retail price, we will definitely price-match any other Canadian website.

5. Reliable International Shipping

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or similar couriers. Go through the checkout process to receive a shipping quote or contact us if a shipping quote is not available at checkout.

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Finance your purchase within minutes without paying interest!

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7. We are authorized resellers with manufacturer’s warranty

You will buy confidently from us since only sell new, official products (no used items or clones). All warranties are new are 100% honored through the respective manufacturer.

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9. Hassle-free returns

Just in case your purchase was not up to your standards, we offer return shipping if you are not 100% satisfied for any reason

10. Route Package Protection

Adding Route Package Protection to your order at checkout means that your order is protected against being lost, damaged, or stolen. In the unfortunate instance that you experience one of these inconveniences, you can report an issue with Route and they will work with you to make sure you get the resolution you prefer.

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