---
product_id: 18864514
title: "FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free"
brand: "fernco"
price: "€ 28.18"
currency: EUR
in_stock: true
reviews_count: 11
category: "Fernco"
url: https://www.desertcart.hr/products/18864514-fernco-fts-4cf-3-1-2in-4cf-toilet-seal-wax
store_origin: HR
region: Croatia
---

# 4-inch drain pipe compatibility Wax-free, mess-free seal 3.5-inch flange fit FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free

**Brand:** fernco
**Price:** € 28.18
**Availability:** ✅ In Stock

## Summary

> 🚽 Seal the deal with confidence—ditch the wax, embrace the future!

## Quick Answers

- **What is this?** FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free by fernco
- **How much does it cost?** € 28.18 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/18864514-fernco-fts-4cf-3-1-2in-4cf-toilet-seal-wax)

## Best For

- fernco enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Durability:** Crafted from high-quality polyvinyl chloride, engineered for long-lasting reliability and resistance to wear.
- • **Wax-Free Innovation:** Say goodbye to messy wax rings—this flexible PVC seal offers a clean, durable alternative that resists sewer odors and leaks.
- • **Proudly Made in the USA:** Backed by decades of Fernco’s industry-leading expertise and quality manufacturing standards.
- • **Precision Fit for Modern Plumbing:** Designed to perfectly seal 3.5" flanges and 4" drain pipes, ensuring leak-proof performance every time.
- • **Easy Installation, Professional Results:** User-friendly design allows quick, secure installation with strong adhesion to porcelain surfaces—no plumber needed.

## Overview

The Fernco FTS-4CF Wax Free Toilet Seal is a high-performance, flexible PVC seal designed for 3.5-inch toilet flanges and 4-inch drain pipes. It offers a clean, wax-free alternative that prevents leaks and sewer odors, ensuring a secure fit with easy installation. Manufactured in the USA by Fernco, a trusted leader in plumbing solutions since 1964, this product combines durability, innovation, and professional-grade reliability for modern plumbing needs.

## Description

Product Description Fernco Wax Free Toilet Seal for 3.5" Flange and 4" Drain Pipe From the Manufacturer Established in 1964, Fernco is a global leader in manufacturing high-quality flexible pipe couplings, drainage, and plumbing systems. Renowned for exceptional performance and reliability, Fernco products are trusted by homeowners and professionals alike. With a commitment to innovation and dependability, Fernco has earned a strong reputation for delivering superior solutions. As a proud USA manufacturer, Fernco is dedicated to maintaining the highest standards of production and engineering.

Review: Worked like a charm, easy insulation - Worked like a charm! Be sure to clean thoroughly around the toilet opening so it adheres properly to the bowl. Press firmly around the glued area several times to ensure a secure, tight fit.
Review: This is a fantastic product. - I was a bit skeptical at first - but after speaking with a local plumber I decided I would go ahead and try it. Our bathroom closet had a sewer smell that would come and go. We washed out the vent pipes on the roof and the next thing to try was to pull the toilet and replace the wax ring. Come to find out, the wax ring failed and was allowing sewer gases to enter the home - rather than have to worry about a wax ring and after the positive feedback from a plumber I installed this product. The adhesion of the seal to the porcelain is quite good - if you had a wax ring before I would certainly recommend scraping off the wax and using a fairly stiff brush attempt to scrub and remove the remaining wax remnants. Only apply the seal once the wax is removed from the horn and the surrounding area and after the porcelain is completely dry (we used a hair dryer to speed things up). Upon installation I certainly "felt the seal" - another tip I would also recommend using dish soap to help the seal's ribs go into the PVC. 2 weeks later, no smells and no leaks.

## Features

- 3-1/2IN
- 4CF
- TOILET SEAL
- WAX FREE
- Plumbing Service Kit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000X1063C |
| Best Sellers Rank | #123,133 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,907 in Pipe Fittings |
| Brand | Fernco |
| Brand Name | Fernco |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 131 Reviews |
| Global Trade Identification Number | 00018578008670 |
| Included Components | Wax Free Toilet Seal for 3.5" Flange and 4" Drain Pipe |
| Item Dimensions | 3.5 x 5 x 5 inches |
| Item Type Name | Wax Free Toilet Seal for 3.5" Flange and 4" Drain Pipe |
| Item Weight | 0.55 Pounds |
| Item dimensions L x W x H | 3.5 x 5 x 5 inches |
| Manufacturer | Fernco Inc. |
| Material | Polyvinyl Chloride |
| Material Type | Polyvinyl Chloride |
| Model | FTS-4CF |
| Number of Items | 1 |
| Part Number | FTS-4CF |
| UPC | 783961348588 018578008670 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |

## Images

![FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free - Image 1](https://m.media-amazon.com/images/I/71RJlhkCBNL.jpg)
![FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free - Image 2](https://m.media-amazon.com/images/I/717RV5nCkOL.jpg)
![FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free - Image 3](https://m.media-amazon.com/images/I/61RnR1H2HTL.jpg)
![FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free - Image 4](https://m.media-amazon.com/images/I/81TEw+MEl+L.jpg)
![FERNCO FTS-4CF 3-1/2IN, 4CF, Toilet Seal, Wax Free - Image 5](https://m.media-amazon.com/images/I/81zlLXGmsAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked like a charm, easy insulation
*by T***. on March 7, 2026*

Worked like a charm! Be sure to clean thoroughly around the toilet opening so it adheres properly to the bowl. Press firmly around the glued area several times to ensure a secure, tight fit.

### ⭐⭐⭐⭐⭐ This is a fantastic product.
*by J***P on December 9, 2012*

I was a bit skeptical at first - but after speaking with a local plumber I decided I would go ahead and try it. Our bathroom closet had a sewer smell that would come and go. We washed out the vent pipes on the roof and the next thing to try was to pull the toilet and replace the wax ring. Come to find out, the wax ring failed and was allowing sewer gases to enter the home - rather than have to worry about a wax ring and after the positive feedback from a plumber I installed this product. The adhesion of the seal to the porcelain is quite good - if you had a wax ring before I would certainly recommend scraping off the wax and using a fairly stiff brush attempt to scrub and remove the remaining wax remnants. Only apply the seal once the wax is removed from the horn and the surrounding area and after the porcelain is completely dry (we used a hair dryer to speed things up). Upon installation I certainly "felt the seal" - another tip I would also recommend using dish soap to help the seal's ribs go into the PVC. 2 weeks later, no smells and no leaks.

### ⭐⭐⭐⭐⭐ Best fix out there
*by G***C on April 26, 2025*

This was the last thing I tried to seal a toilet that must have been a second sale item. The toilet base wasn't level and I tried two different wax seal with poor results. This one fixed it! It was easy to install fit tightly into the drain line and no more leaking. Makes a one man job a lot easier.

## Frequently Bought Together

- Fernco Wax Free Toilet Seal for 3.5" Flange and 4" Drain Pipe
- Fernco Wax Free Toilet Seal for 4" Drain Pipe
- Fernco Wax Free Toilet Seal for 3" Drain Pipe

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---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-23*