---
product_id: 538323265
title: "1\" Adhesive Waterproof Monotub PTFE Membrane Disc Filters (1 Sheet - 12 Filters)"
brand: "north spore"
price: "₨8815"
currency: LKR
in_stock: true
reviews_count: 5
category: "North Spore"
url: https://www.desertcart.lk/products/538323265-1-adhesive-waterproof-monotub-ptfe-membrane-disc-filters-1-sheet
store_origin: LK
region: Sri Lanka
---

# Ultra-high airflow Precision 1-inch size Waterproof & durable 1" Adhesive Waterproof Monotub PTFE Membrane Disc Filters (1 Sheet - 12 Filters)

**Brand:** north spore
**Price:** ₨8815
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your grow game with breathable, waterproof precision!

## Quick Answers

- **What is this?** 1" Adhesive Waterproof Monotub PTFE Membrane Disc Filters (1 Sheet - 12 Filters) by north spore
- **How much does it cost?** ₨8815 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/538323265-1-adhesive-waterproof-monotub-ptfe-membrane-disc-filters-1-sheet)

## Best For

- north spore enthusiasts

## Why This Product

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

## Key Features

- • **Humidity Hero:** Maintains optimal moisture levels to keep your substrate and mycelium thriving.
- • **Seal the Deal:** Strong adhesive backing guarantees a perfect, no-fuss fit every time—no gaps, no leaks.
- • **Fits Like a Glove:** Precisely sized 1-inch discs designed for seamless integration with popular grow boxes.
- • **Breathe Easy, Grow Better:** Ultra-thin PTFE membrane ensures maximum fresh air exchange without compromising humidity.
- • **Affordable Pro-Grade Quality:** Top-tier filtration performance without breaking the bank—trusted by growers.

## Overview

These 1-inch adhesive PTFE membrane disc filters deliver ultra-high airflow while maintaining essential humidity levels, ensuring optimal substrate and mycelium health. Waterproof and ultra-thin, they fit perfectly in grow boxes, providing a reliable, easy-to-apply filtration solution favored by professional cultivators.

## Description

These high airflow, ultra-thin filters give your substrate and mycelium fresh air while maintaining high humidity levels.

Review: Fyi - Works great just measure twice
Review: Fits my grow box perfectly. - I bought a FUNGISMILE Grow Box and was missing the air filters that the manual shows. Lousy customer service refused to send them. This seems to be working as I checked after the first fruiting and they looked good and are now being used on the second fruiting. Very affordable. Easy to apply. Fits perfect. Debbie

## Features

- These high airflow, ultra-thin filters give your substrate and mycelium fresh air while maintaining high humidity levels.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C5NKL5DX |
| Best Sellers Rank | #107,038 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #803 in In-Refrigerator Water Filters |
| Date First Available | May 18, 2023 |
| Manufacturer | North Spore |

## Images

![1" Adhesive Waterproof Monotub PTFE Membrane Disc Filters (1 Sheet - 12 Filters) - Image 1](https://m.media-amazon.com/images/I/31ZO4+ux7+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fyi
*by N***E on December 22, 2025*

Works great just measure twice

### ⭐⭐⭐⭐⭐ Fits my grow box perfectly.
*by D***E on September 16, 2025*

I bought a FUNGISMILE Grow Box and was missing the air filters that the manual shows. Lousy customer service refused to send them. This seems to be working as I checked after the first fruiting and they looked good and are now being used on the second fruiting. Very affordable. Easy to apply. Fits perfect. Debbie

### ⭐⭐⭐⭐⭐ Easy to use, works great
*by M***T on April 11, 2024*

Very easy to apply/reapply if you don't get it just right. Humidity retention is excellent.

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**Shop now:** [https://www.desertcart.lk/products/538323265-1-adhesive-waterproof-monotub-ptfe-membrane-disc-filters-1-sheet](https://www.desertcart.lk/products/538323265-1-adhesive-waterproof-monotub-ptfe-membrane-disc-filters-1-sheet)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-19*