Monotub Refill Kit

Monotub Refill Kit – Substrate & Grain for Dung-Loving Mushroom Grows

Already have your monotub dialed in? The includes everything you need to run another grow—just add spores or liquid culture. Designed as a perfect follow-up to our full monotub kit, this refill pack includes two bags of sterilized monotub mix and one bag of sterilized grain spawn, prepped and packaged for a clean, high-yield bulk grow.