Description
Product Overview
The AOMUCH 33239 toilet flange seal is engineered for RV, camper and trailer toilet systems. Crafted from a proprietary high‑performance rubber blend, the seal offers superior elasticity and resistance to chemicals found in black water. Measuring 4.72 x 0.75 x 4.72 inches and weighing just 1.87 ounces, it provides a compact yet robust solution. The design fits standard 3″ toilet flanges, replacing part numbers such as 02125, Aqua Magic Galaxy, Starlite, Aqua Magic V, and Bravura models. Its upgraded geometry creates a tighter grip on the pipe, minimizing the risk of leaks during travel.
Usage
This seal is ideal for RV owners, mobile homeowners, and anyone with a portable sanitation system. Install it when replacing a worn flange or during routine maintenance of your black water tank connections. It performs reliably in a range of temperatures and vibrations typical of road travel, making it perfect for long trips, weekend getaways, and full‑time van life. 
Why Choose Us
AOMUCH combines decades of experience in marine and RV plumbing components to deliver a product that exceeds OEM specifications. The rubber compound is selected for its long service life, reducing the frequency of replacements and saving you time and money. Each seal undergoes rigorous quality testing, ensuring a perfect fit and leak‑free performance. Our customer support team is ready to assist with installation guidance and any concerns, reinforcing confidence in every purchase.
Key Features
- High‑quality rubber blend for durability and chemical resistance
- Standard 3″ flange compatibility with multiple RV toilet models
- Upgraded seal geometry for a tighter, leak‑proof connection
- Lightweight design (1.87 oz) for easy handling and installation
- Backed by a 4.6‑star rating from 66 verified customers
FAQ
What toilet models are compatible with the 33239 seal?
The seal fits standard 3″ flanges and is compatible with Thetford, Aqua Magic Galaxy, Starlite, Aqua Magic V, Bravura and other common RV toilet brands that use a 3″ flange.
How do I install the seal?
Remove the old seal, clean the pipe and flange surfaces, then press the new rubber seal onto the pipe and secure it under the toilet base. Ensure it sits evenly to prevent gaps.
Will this seal prevent leaks during long trips?
Yes. The upgraded rubber formulation and tighter fit are designed to withstand vibration and temperature changes, significantly reducing the chance of leaks.
Is this seal covered by a warranty?
AOMUCH offers a limited one‑year warranty against manufacturing defects. Contact our support through your order history for assistance.
Can I use this seal for marine applications?
While the material is marine‑grade, the product is specifically tested for RV black water systems. For dedicated marine use, we recommend checking the marine‑specific product line.




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