Cultiwool Rockwool Rooting Plugs 1.4″×1.4″×1.6″ — Sheets & Pallet

Built for fast, uniform starts in pro grow rooms

Cultiwool rockwool rooting plugs (1.4″×1.4″×1.6″) deliver the consistency commercial growers demand—clean, inert stone wool with the right balance of air and water for rapid rooting. Each plug has a pre-formed planting hole for seeds or cuttings and a dense, uniform fiber that promotes even moisture distribution and sturdy root structure.

Why growers choose Cultiwool plugs

• Consistent, inert media – sterile stone wool with stable structure for predictable results.

• Optimized porosity & drainage – encourages oxygen at the root zone and fast root initiation.

• Pre-formed hole – easy, repeatable placement for clones or seeds.

• Transplant friendly – plug size nests cleanly into larger Cultiwool blocks (e.g., 4″ or 6″ cubes) for a smooth step-up.

• Reliable quality – 454 Bags only carries brands we trust; Cultiwool is a favorite for high-performance propagation.

Buying options (choose your sheet count in the dropdown)

• 1 Sheet — 84 plugs (best for trials or small runs)

• 25 Sheets — 2,100 plugs (great for perpetual propagation)

• Pallet — 375 Sheets / 31,500 plugs (commercial volume)

How to use (quick start)

1. Condition plugs in clean, pH-adjusted water (commonly 5.5–5.8) until evenly saturated.

2. Plant seeds or insert prepared cuttings into the pre-formed hole.

3. Maintain gentle irrigation—keep moist, not waterlogged; monitor EC and pH.

4. Transplant once strong white roots are visible through the sides/bottom of the plug—perfect fit into larger Cultiwool blocks.

Specs

• Media: Stone wool (rockwool)

• Plug size: 1.4″ × 1.4″ × 1.6″

• Plugs per sheet: 84

• Sheet options: 1 sheet, 25 sheets (2,100 plugs), or pallet (31,500 plugs)

• Use cases: Clones, seedlings, and hydroponic propagation; suitable for cannabis, herbs, and leafy greens

Pro tip: Pair these plugs with Cultiwool 6″ blocks (donut ring) or other Cultiwool cubes to maintain uniform moisture during the early stages of veg.