---
product_id: 380173087
title: "64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation"
brand: "biomed solutions"
price: "KD 5.35"
currency: KWD
in_stock: true
reviews_count: 13
category: "Biomed Solutions"
url: https://www.desertcart.com.kw/products/380173087-64pcs-20mm-diameter-synthetic-filter-disc-hydrophobic-ptfe-membrane-0
store_origin: KW
region: Kuwait
---

# 20mm diameter precision High-temp & pressure resistant 0.3μm ultra-fine pore size 64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation

**Brand:** biomed solutions
**Price:** KD 5.35
**Availability:** ✅ In Stock

## Summary

> 🍄 Cultivate Clean, Grow Confident: The Ultimate Filter for Next-Level Mycology

## Quick Answers

- **What is this?** 64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation by biomed solutions
- **How much does it cost?** KD 5.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/380173087-64pcs-20mm-diameter-synthetic-filter-disc-hydrophobic-ptfe-membrane-0)

## 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

- • **Heat & Pressure Tough:** Withstands autoclave, pressure cooker, and steam sterilizer conditions without losing adhesion or function.
- • **Ultra-Fine Filtration:** 0.3μm hydrophobic PTFE membrane filters 99.97% of airborne contaminants while allowing optimal gas exchange.
- • **Waterproof Yet Breathable:** Hydrophobic membrane repels moisture while maintaining essential airflow to keep your cultures thriving.
- • **Precision Fit for Mycology:** 20mm diameter discs designed to perfectly seal mason jar lids, ensuring a sterile environment for your mushroom cultivation.
- • **Easy Application & Reusable:** Strong adhesive sticks securely on clean, dry surfaces and supports multiple sterilization cycles for sustainable use.

## Overview

This pack of 64 synthetic 20mm hydrophobic PTFE filter discs features a 0.3μm pore size, delivering 99.97% filtration efficiency. Engineered for mushroom cultivation, these waterproof, breathable filters resist high temperatures and pressure, making them ideal for autoclave sterilization. Strong adhesive backing ensures a secure fit on mason jar lids, supporting sterile, optimal gas exchange environments for professional and hobbyist growers alike.

## Description

Specifications: Size: 20 mm in diameter Color: white Membrane material:Hydrophobic PTFE Pore size:0.3um Package includes: 16 x4sheets Synthetic filter discs Features: Waterproof ,breathable,high temperture and press resistance,reuseable. 64pcs filter sticker Included ,Great for the for all mushroom growers looking to provide a sterile growing environment with proper air exchange. These filter vent work great for a variety of growing techniques including BRF Jars, Liquid Culture, Spawn Cultivation and may more. Safe for Pressure Cooking and Autoclave Sterilization.

Review: Sticks wonderfully and works as stated. - Purchased these to modify some grow tubs. The smaller ones work best for my tubs. If using the larger patches, less is more. Tried using 4 of the larger patches and it allows too much gas exchange and it's hard to keep humidity.
Review: Exactly as expected! - Great for making your own home made spawn jars! They stayed on after sterilization!

## Features

- Diameter:20mm,0.3um Pore size,Hydrophobic PTFE membrane ,waterproof and air exchange for Mushroom cultivation,best for mycology jar lid .
- Strong adhesive:these synthetic filter paper can be attached to the hole of mason jar lids and you need to clean and dry the surface before sticking filter patch
- High temperture resistance:these disc filters feature outstanding heat resistance and pressure resistance, which can be applied to your autoclaves,press cooker and steam sterilizer.
- High filter rate: these adhesive patches have a filtration rate of 99.97% ,can filter 0.3 μm object ,for gas exchange
- Easy to apply:breathable,durable and reusable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LD119PF |
| Best Sellers Rank | #72,625 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Lab Filter Membranes |
| Date First Available | November 9, 2021 |
| Item Weight | 0.704 ounces |
| Item model number | USGLM-64Z |
| Manufacturer | Biomed Scientific |
| Package Dimensions | 5.83 x 4.69 x 0.55 inches |

## Images

![64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation - Image 1](https://m.media-amazon.com/images/I/71Y5pHDZN4L.jpg)
![64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation - Image 2](https://m.media-amazon.com/images/I/61ai6aWkObL.jpg)
![64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation - Image 3](https://m.media-amazon.com/images/I/61jOOLRPZsL.jpg)
![64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation - Image 4](https://m.media-amazon.com/images/I/81tR7+hozPL.jpg)
![64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation - Image 5](https://m.media-amazon.com/images/I/71D73d3ZHPL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sticks wonderfully and works as stated.
*by K***R on November 9, 2023*

Purchased these to modify some grow tubs. The smaller ones work best for my tubs. If using the larger patches, less is more. Tried using 4 of the larger patches and it allows too much gas exchange and it's hard to keep humidity.

### ⭐⭐⭐⭐⭐ Exactly as expected!
*by M***E on March 7, 2025*

Great for making your own home made spawn jars! They stayed on after sterilization!

### ⭐⭐⭐⭐⭐ Work great on mushroom jars with no contamination!
*by J***H on June 15, 2024*

I love these! Very easy to use, made it through the pressure cooker at least 3 times so far, and still look good as new. I have made at least 20 mushroom jars with no contamination. Will be a repeat consumer of these.

## Frequently Bought Together

- 64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation
- Myco Labs Microppose Self Healing Injection Ports for Mushroom Spawn Bags and Jar Lids (50-Pack)
- 3M Micropore Tape 1530-1 (2 rolls) 1 x 10 yards

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-07*