---
product_id: 740902664
title: "Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9)"
brand: "biomed solutions"
price: "€ 39.37"
currency: EUR
in_stock: true
reviews_count: 5
category: "Biomed Solutions"
url: https://www.desertcart.sk/products/740902664-biomed-solutions-mushroom-grow-bag-cap-and-ring-for-cultivating
store_origin: SK
region: Slovakia
---

# Withstands 130℃ sterilization Cotton filter for breathable contamination control Polypropylene durable sealing ring Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9)

**Brand:** biomed solutions
**Price:** € 39.37
**Availability:** ✅ In Stock

## Summary

> 🍄 Seal the deal on your mushroom harvest with pro-grade precision!

## Quick Answers

- **What is this?** Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9) by biomed solutions
- **How much does it cost?** € 39.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/740902664-biomed-solutions-mushroom-grow-bag-cap-and-ring-for-cultivating)

## Best For

- biomed solutions enthusiasts

## Why This Product

- Trusted biomed solutions brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Pack Efficiency:** Includes 9 caps and rings, perfect for scaling your cultivation without frequent reordering.
- • **Effortless Sealing System:** Innovative polypropylene cap and ring design simplifies mushroom bag sealing, saving time and labor for busy cultivators.
- • **Optimized Airflow Control:** Integrated cotton filter cover balances breathability and protection, maintaining ideal conditions for mushroom growth.
- • **Sterilization-Ready Durability:** Engineered to endure high-pressure steam sterilization up to 130℃, ensuring a contamination-free grow environment.
- • **Professional-Grade Cultivation Aid:** Trusted by mycology experts for reliable performance and consistent results in mushroom farming.

## Overview

The Biomed Solutions Mushroom Grow Bag Cap and Ring set features a 40mm polypropylene ring and cap with a cotton filter cover, designed for high-temperature resistance up to 130℃. This pack of 9 provides a reliable, easy-to-use sealing solution that protects your mushroom cultivation bags from contaminants while allowing optimal airflow, making it an essential tool for both hobbyists and professional growers.

## Description

The ring cap is widely used for sealing the mushroom bag , easy to use and save labor, the seal cover is made of polypropylene material, which can be used under high temperature and pressure, and can withstand up to 130℃ high temperature

Review: You can reinforce the filter with another layer of porous tape + loosely placed aluminum foil (for breathing), but they do the job of keeping the contaminants out while providing safe and easy access for inoculation.
Review: The sleeves work really well. Some people have said they don't secure well at all but I don't think they are actually clicking the 2 pieces closed. They are very difficult to pry apart once you close them. Only downside is the cheap foam filter on top. I added some micropore tape on top of the filter and it works fine.

## Features

- Mushroom cultivation auxiliary material ring for growing mushroom
- Polypropylene cap and ring with cotton filter
- Diameter:40mm
- High temperature resistance,can withstand 130℃ high temperature in press cooker sterilization

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B2PCYNJD |
| Customer Reviews | 4.6 4.6 out of 5 stars (31) |
| Date First Available | 18 Aug. 2022 |
| Manufacturer | Biomed Scientific |
| Package Dimensions | 18.59 x 17.91 x 3.51 cm; 4.54 g |
| Sunlight exposure | Full Sun |

## Product Details

- **Brand:** Biomed Solutions
- **Indoor/Outdoor usage:** Indoor
- **Item weight:** 5 g
- **Material feature:** Mushroom
- **Number of items:** 9
- **Number of pieces:** 9
- **Sunlight exposure:** Full Sun

## Images

![Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9) - Image 1](https://m.media-amazon.com/images/I/41Tk+IH6FeL.jpg)
![Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9) - Image 2](https://m.media-amazon.com/images/I/510lXoFPTmL.jpg)
![Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9) - Image 3](https://m.media-amazon.com/images/I/519izgbyO0L.jpg)
![Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9) - Image 4](https://m.media-amazon.com/images/I/51WYMA+w1pL.jpg)
![Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9) - Image 5](https://m.media-amazon.com/images/I/61QtwX85KEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***F on 18 December 2025*

You can reinforce the filter with another layer of porous tape + loosely placed aluminum foil (for breathing), but they do the job of keeping the contaminants out while providing safe and easy access for inoculation.

### ⭐⭐⭐⭐⭐ Review
*by T***D on 25 June 2023*

The sleeves work really well. Some people have said they don't secure well at all but I don't think they are actually clicking the 2 pieces closed. They are very difficult to pry apart once you close them. Only downside is the cheap foam filter on top. I added some micropore tape on top of the filter and it works fine.

### ⭐⭐⭐ Review
*by S***H on 8 January 2023*

I wasn't really impressed with the quality of this product. I'm fairly new to mushroom cultivation so I was really excited to try these rings out but when I got them they were subpar in my opinion. They are super small and flimsy I'm not even sure what the filter is made out of and there were no instructions whatsoever. Save your money for some better options that are out there.

## Frequently Bought Together

- Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9)
- TonGass 60-Pack Autoclavable Mushroom Growing Bag Bulk with Microporous Filter Patchs - Large 8"x5"x20" Extra Thick 80 Micron (=3 Mil)| Mushroom Cultivation Spawn Supply Myco Bag Bulk Substrate Bags
- 3M Micropore Tape 1530-1 (2 rolls) 1 x 10 yards

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-10*