Grodan A-OK Starter Plugs | 1.5in - 1.4in x 1.4in x 1.6in Pre-Cut Holes - Loose (Case of 2310)

Stonewool Substrate Plugs for Seed and Cutting Propagation

Grodan A-OK Plugs offer a dependable stonewool substrate suitable for cultivating lettuce, leafy greens, and culinary herbs.

Crafted from molten rock spun into fibers and compressed into cubes, these plugs allow excellent absorption of nutrient solution while maintaining oxygen levels for swift plant growth.

The V-shape design of each plug deters root tangling, helping ensure a seamless transition into larger growing blocks.

Key Features & Benefits

• Stonewool substrate — consistent, firm structure
• V-shape design — deters root tangling
• Absorbs nutrient solution — while maintaining oxygen levels
• Loose, case of 2310 — 1.5 inch size with pre-cut holes

Who Should Use These Starter Plugs

Growers propagating seeds or cuttings, including lettuce, leafy greens, and culinary herbs, in hydroponic systems.

Plug Size and Packaging

These plugs measure 1.5 inch, with a 1.4 inch by 1.4 inch by 1.6 inch pre-cut hole, and ship loose in a case of 2310.

Frequently Asked Questions

What is this plug made from?

Stonewool, made from molten rock spun into fibers and compressed into cubes.

Why does the plug have a V-shape?

To deter root tangling and help cuttings transition into larger growing blocks.

What crops is this suited for?

Lettuce, leafy greens, and culinary herbs, among other hydroponic crops.

How many plugs come in a case?

2310 plugs, shipped loose.