Commercial Stonewool Starter Plugs for Propagation & Seeding

Grodan® A-OK Starter Plugs 36/40 are precision-formed 1.5"x1.5" stonewool plugs in sheet format, engineered for commercial seeding and cutting propagation. Each sheet contains 98 plugs, and each case contains 30 sheets (2,940 plugs total) — ideal for large-scale germination and propagation workflows.

Key Features

• 1.5" x 1.5" (36mm x 40mm) A-OK stonewool starter plugs in sheet format
• 30 sheets per case — 2,940 plugs total for high-volume propagation
• Uniform plug density and moisture retention for consistent germination and rooting
• Optimal air-to-water ratio supports rapid root development
• Compatible with standard propagation trays and automated seeding equipment
• Advanced Wetting Agent (AWA) for fast, uniform saturation
• Seamlessly transplants into Grodan Gro-Blocks and slabs

What’s Included

30 sheets of 98 A-OK 36/40 1.5"x1.5" stonewool starter plugs (2,940 plugs total). Intended for commercial propagation use.