---
product_id: 62778507
title: "FERNOX Leak Sealer - External -50g (LSX) - Pack of 2"
brand: "fernox"
price: "$63.88"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/62778507-fernox-leak-sealer-external-50g-lsx-pack-of-2
store_origin: US
region: United States of America
---

# Safe for drinking water No mixing required Works in extreme temps FERNOX Leak Sealer - External -50g (LSX) - Pack of 2

**Brand:** fernox
**Price:** $63.88
**Availability:** ✅ In Stock

## Summary

> 🔒 Seal the Deal with Fernox!

## Quick Answers

- **What is this?** FERNOX Leak Sealer - External -50g (LSX) - Pack of 2 by fernox
- **How much does it cost?** $63.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/62778507-fernox-leak-sealer-external-50g-lsx-pack-of-2)

## Best For

- fernox enthusiasts

## Why This Product

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

## Key Features

- • **Ready to Use:** No mixing, no hassle—just apply and go!
- • **Durable & Reliable:** Doesn't shrink or crack over time, ensuring long-lasting seals.
- • **Flexible Performance:** Never sets rock hard, allowing for easy adjustments.
- • **Seal with Confidence:** Perfect for compression joints and screwed fittings.
- • **Extreme Temperature Tolerance:** Effective from below freezing to above boiling point.

## Overview

The Fernox Leak Sealer (LSX) is a versatile, user-friendly solution for sealing leaks in plumbing systems. Each 50g pack is safe for drinking water, requires no mixing, and remains flexible over time, making it ideal for both residential and commercial applications. With a temperature tolerance that spans from below freezing to above boiling, this product is designed to meet the demands of any environment.

## Description

FERNOX Leak Sealer - External -50g (LSX) - Pack of 2

## Features

- Fernox lsx leak sealer is completely safe to use with drinking water, ideal for use on compression joints and screwed fittings
- Never sets rock hard, joints can easily be undone
- Ready to use, no mixing required
- Does not shrink or crack with age
- Suitable for use from below freezing point to above boiling point of water

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Fernox |
| Part Number | LSX |
| Item Weight | 120 Grams |
| Manufacturer reference | LSX |
| Size | 50 Grams |
| Style | Compact |
| Item Package Quantity | 1 |
| Number of Pieces | 2 |
| Item Weight | 120 g |

## Images

![FERNOX Leak Sealer - External -50g (LSX) - Pack of 2 - Image 1](https://m.media-amazon.com/images/I/41R13BeGzuL.jpg)

---

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**Shop now:** [https://www.desertcart.us/products/62778507-fernox-leak-sealer-external-50g-lsx-pack-of-2](https://www.desertcart.us/products/62778507-fernox-leak-sealer-external-50g-lsx-pack-of-2)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-20*