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Filter Patch Bags — XLS-A

Bag

Price range: $5.00 through $40.00

In stock · Free shipping on orders over $75 · Live arrival guaranteed

From $0.40/bag. High-airflow filter patch bags for sterilized grain and substrate work. Available in pack sizes: 10 / 25 / 50 / 100. Bulk discounts automatically applied.
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Or 4 interest-free payments. Ships from Longmont, CO.
Live arrival guarantee

Arrives healthy or we replace it free

Lab-tested clean

Every lot checked for contamination

Fast nationwide shipping

Free over $75 · 1–2 day handling

Colorado small-batch

Grown with care, never at scale

What's included & how it works

Each kit arrives as a fully-colonized block ready to fruit — no sterile technique, no extra gear.

  • Cut the marked window and mist 2–3× daily
  • First pins appear in days; harvest in 1–2 weeks
  • Re-mist for a second and third flush
  • Includes step-by-step printed instructions + a link to our video guide

Additional information

Pack Size

10, 25, 50, 100

We ship Monday–Wednesday to keep your order moving over the weekend. Orders over $75 ship free. If your living product arrives unhealthy, send us a photo within 48 hours and we’ll replace it free — no questions asked.

Verified reviews

What growers are
saying

Share your experience

4.4
★★★★☆
Based on 19 reviews
5 ★ 42%
4 ★ 53%
3 ★ 5%
2 ★ 0%
1 ★ 0%
★★★★★
July 6, 2026

Highly satisfied. Everything about it is spot on and durable.

JL
Joshua L.
Verified
★★★★☆
June 10, 2025

Pretty good. Meets expectations and feels durable.

WM
William M.
★★★★☆
December 11, 2025

Wouldn't rush to buy again. It's below average.

AJ
Ashley J.

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