---
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: "€ 38.45"
currency: EUR
in_stock: true
reviews_count: 5
category: "Biomed Solutions"
url: https://www.desertcart.hr/products/740902664-biomed-solutions-mushroom-grow-bag-cap-and-ring-for-cultivating
store_origin: HR
region: Croatia
---

# Perfect 40mm diameter fit Withstands 130℃ sterilization Polypropylene durable seal Biomed Solutions Mushroom Grow Bag Cap and Ring for Cultivating Sealing Cotton Filter Cover 40mm(Pack of 9)

**Brand:** biomed solutions
**Price:** € 38.45
**Availability:** ✅ In Stock

## Summary

> 🍄 Seal in Success, Grow with Confidence!

## 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?** € 38.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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

- • **Labor-Saving Design:** Quick and easy to apply, saving you time and hassle during inoculation
- • **Sterilize Like a Pro:** Handles up to 130℃ in pressure cookers for contamination-free cultivation
- • **Trusted by Cultivators:** Highly rated with 4.4 stars for reliable contamination control and ease of use
- • **Optimized Fit for Growth:** Precisely sized 40mm diameter ensures a snug fit for standard mushroom grow bags
- • **Effortless Seal & Protect:** Polypropylene cap and ring create a secure, breathable barrier to keep your mushroom bags safe

## Overview

Biomed Solutions Mushroom Grow Bag Cap and Ring set offers a high-temperature resistant polypropylene seal with a breathable cotton filter, designed to fit 40mm diameter mushroom cultivation bags. This pack of 9 caps ensures contamination-free, efficient mushroom growing with easy application and proven durability under sterilization conditions up to 130℃.

## 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: They're good - 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: Didn’t fit my bags - May be my fault but I couldn’t get the cap on the collar. It was like the bag was interfering with it snapping in place.

## 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 |
| Brand | Biomed Solutions |
| Brand Name | Biomed Solutions |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 32 Reviews |
| Indoor Outdoor Usage | Indoor |
| Indoor/Outdoor usage | Indoor |
| Item Weight | 5 g |
| Item weight | 5 g |
| Manufacturer | Biomed Scientific |
| Material Features | Mushroom |
| Material feature | Mushroom |
| Number of Items | 9 |
| Number of Pieces | 9 |
| Number of pieces | 9 |
| Plant or Animal Product Type | 蔬菜 |
| Sunlight Exposure | Full Sun |
| Sunlight exposure | Full Sun |

## Product Details

- **Brand:** Biomed Solutions
- **Indoor/Outdoor usage:** Indoor
- **Item weight:** 0.01 Pounds
- **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/61QtwX85KEL.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/71FQ4hNhISL.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/71-4v+Jk9RL.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/71WgpZ1AhTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ They're good
*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.

### ⭐⭐⭐ Didn’t fit my bags
*by S***Y on 20 April 2026*

May be my fault but I couldn’t get the cap on the collar. It was like the bag was interfering with it snapping in place.

### ⭐⭐⭐⭐⭐ Auto clave compatible
*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.

## 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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**Shop now:** [https://www.desertcart.hr/products/740902664-biomed-solutions-mushroom-grow-bag-cap-and-ring-for-cultivating](https://www.desertcart.hr/products/740902664-biomed-solutions-mushroom-grow-bag-cap-and-ring-for-cultivating)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-10-14*