Substrate Bags – XLSB with 5.0 Micron Filter Patch

Durable, breathable grow bags for substrate colonization.

These XLSB (Extra-Large Substrate Bags) feature a 5.0 micron filter patch for excellent gas exchange during colonization. Made from thick, autoclavable polypropylene, they are ideal for bulk substrate preparation in both hobbyist and professional setups. Perfect for pasteurized or sterilized media that benefit from higher airflow.

Specs:

• Bag Size: XLSB – Extra Large (approx. 10" x 5" x 24")

• Filter: 5.0 micron (high airflow)
  

• Material: High-temp polypropylene (autoclavable)

Features:

• High-flow 5.0 micron filter patch promotes strong gas exchange

• Withstands pressure cooking/autoclaving (up to 250°F / 121°C)

• Extra-large capacity for bulk grows or large substrate blocks

• Compatible with sealing, impulse sealers, or bag clamps

• Strong, tear-resistant seams

🛠️ Usage Tip: Ideal for pasteurized substrates like coco coir blends, compost, or straw-based mixes. Pair with a laminar flow hood or clean-air setup for best results.

Sold in packs of 10, 25, 50, or 100.
[Reach out for wholesale or custom sealing options.]