---
product_id: 11222443
title: "RV Toilet Seal Lube and Conditioner - Toilet Seal Lubricant - 24 oz - Thetford 36663"
brand: "thetford"
price: "$45.92"
currency: USD
in_stock: true
reviews_count: 13
category: "Thetford"
url: https://www.desertcart.us/products/11222443-rv-toilet-seal-lube-and-conditioner-toilet-seal-lubricant-24
store_origin: US
region: United States of America
---

# Smooth, stick-free toilet operation Petroleum-free silicone protection Universal RV & marine compatibility RV Toilet Seal Lube and Conditioner - Toilet Seal Lubricant - 24 oz - Thetford 36663

**Brand:** thetford
**Price:** $45.92
**Availability:** ✅ In Stock

## Summary

> 🚐 Keep your RV throne flawless—lubricate, protect, and never get stuck!

## Quick Answers

- **What is this?** RV Toilet Seal Lube and Conditioner - Toilet Seal Lubricant - 24 oz - Thetford 36663 by thetford
- **How much does it cost?** $45.92 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/11222443-rv-toilet-seal-lube-and-conditioner-toilet-seal-lubricant-24)

## Best For

- thetford enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Use Convenience:** Perfect for both toilet seals and holding tank seals—one product, multiple uses.
- • **All-in-One Seal Savior:** Works seamlessly with all RV and portable toilets for ultimate versatility.
- • **Waste-Stick Prevention:** Keeps seals conditioned to prevent waste buildup and clogs.
- • **Season-Ready Protection:** Ideal for year-round use including winterization, ensuring smooth operation anytime.
- • **Silicone Shield Formula:** Petroleum-free lubricant that extends seal life without damage.

## Overview

Thetford's 24 oz RV Toilet Seal Lube & Conditioner is a silicone-based, petroleum-free lubricant designed to penetrate and protect toilet and holding tank seals in RVs and boats. It prevents waste from sticking, extends seal life, and ensures smooth toilet operation, compatible with Thetford chemicals and antifreeze for year-round reliability.

## Description

Thetford's RV Toilet Seal Lube & Conditioner is a perfect solution for prolonging the life of your toilet and holding tank seals.The product is formulated to penetrate the seal, conditioning and preventing it from deteriorating. You can use RV Toilet Seal Lube & Conditioner on RV and marine permanent toilets and on portable toilets.Toilet Seal Lube & Conditioner prevents waste from sticking, ensures smooth toilet operation, and is petroleum-free.Highlights:VERSATILITY: Thetford's RV Toilet Seal Lube & Conditioner works with all permanent or portable toilets found in RVs and boatsFUNCTIONALITY: Penetrates the toilet seal, lubricating and conditioning itUTILITY: Helps prevent waste from sticking, ensuring smooth toilet operationCONVENIENCE: Toilet Seal Lube & Conditioner can be used on toilet seals and on holding tank sealsSAFETY: The petroleum-free, silicone-based formula is safe on seals, prolonging their life.

Review: WORK GREAT. - This is sooo good that my neighbor ran off with it (accidentally). I need to reorder more. Works great for my RV.
Review: Toilet seal lube - Worked great. Bought replacement seals but tried this first and still have my new seals

## Features

- [VERSATILITY]: Thetford's RV Toilet Seal Lube & Conditioner works with all permanent or portable toilets found in RVs and boats
- [FUNCTIONALITY]: Penetrates the toilet seal, lubricating and protecting
- [UTILITY]: Helps prevent waste from sticking, ensuring smooth toilet operation
- [CONVENIENCE]: Toilet Seal Lube & Conditioner can be used on toilet seals and on holding tank seals
- [SAFETY]: The petroleum-free, silicone-based formula is safe on seals, prolonging their life
- Petroleum free lubricant extends toilet seal life
- Helps prevent sticking and promotes smooth toilet operation
- Penetrates seal to lubricate and condition entire seal
- Use throughout season and for winterization
- Compatible with Thetford chemicals and RV/Marine antifreeze

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002NSU0ZW |
| Batteries | 1 Unknown batteries required. |
| Brand | Thetford |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,584) |
| Date First Available | October 1, 2001 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.65 pounds |
| Item model number | 36663 |
| Manufacturer | Thetford |
| Manufacturer Part Number | 36663 |
| Model | 36663 |
| Product Dimensions | 2.5 x 1.65 x 8.25 inches |
| Special Features | Not_Performance_Used |

## Product Details

- **Brand:** Thetford
- **Item Form:** Liquid
- **Specific Uses For Product:** RV/Marine
- **Surface Recommendation:** Toilet
- **Unit Count:** 24.0 Fluid Ounces

## Images

![RV Toilet Seal Lube and Conditioner - Toilet Seal Lubricant - 24 oz - Thetford 36663 - Image 1](https://m.media-amazon.com/images/I/518FWRGL-7L.jpg)

## Available Options

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

## Questions & Answers

**Q: I question whether 6 ounces is needed to lube the seal. It seems that pouring in just enough to completely cover the bottom of the bowl would lube it.**
A: I'm sorry to say this stuff was garbage. It was easier to just go buy a new seal than to waste the $ on this. Didn't even work a little bit.

**Q: do i pour in while the toilet has water in it or should the seal be dry?**
A: Pour in with no water. Make sure valve is closed. Pour about a 1/4 of container if I remember correctly and leave overnight. Fixed my seal. Hasn't leaked since

**Q: Can it be used with valve lube or is this the same thing**
A: The two products are compatible with one another and serve two different purposes. Toilet seal works in the bowl to keep the flush valve functioning . Valve lube goes straight into the blackwater (poo) tank and ALSO in the greywater (sink&shower) tank to prevent problems with the seals that keep the drain valves operational. I use both as preventive maintenance.

**Q: Does this work for the seal on  cassette toilets?**
A: This is not a sealant.  It is simply advertised as a lubricant for sliding toilet parts.  If you're using it as such....it should work

## Customer Reviews

### ⭐⭐⭐⭐⭐ WORK GREAT.
*by D***N on December 16, 2025*

This is sooo good that my neighbor ran off with it (accidentally). I need to reorder more. Works great for my RV.

### ⭐⭐⭐⭐⭐ Toilet seal lube
*by M***. on January 29, 2026*

Worked great. Bought replacement seals but tried this first and still have my new seals

### ⭐⭐⭐⭐⭐ Stops leaking toilet bowl
*by N***N on August 20, 2024*

After a few trips with a new RV we started having trouble with the toilet bowl not holding water. We tried this stuff between trips and the next trip was much better. Applied more before the next trip and the problem has not returned. It seems to not only condition the seals, but also lubricates. We noticed that the ball stop sometimes wouldn't seat completely and that was why the leak was happening. It was leaking down almost every time. After the first use only noticed one time on the next trip, after the second application it isn't happening anymore, and it seems to work much more smothly too.

## Frequently Bought Together

- Thetford RV Toilet Seal Lube and Conditioner - Toilet Seal Lubricant - 24 oz 36663
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-15*