Best Toilet Replacement for a Thetford Model 31684
Updated 01/12/2026 | Published 09/03/2024
Question:
I need a replacement for a Thetford model: 31684. I prefer a full size toilet if the bolt pattern is the same. What do you recomend? This is for full time RV living.
asked by: Victor
0
Expert Reply:
Hey Victor, thanks for reaching out!
Your Thetford 31684 has a rough-in measurement of 7-5/8" so the Thetford Aqua-Magic VI RV Toilet # TH37SE is the best replacement for you because it has the same profile so no modifications are needed to get this to fit your current setup.
expert reply by:
Jon G
0
Product Page this Question was Asked From
Thetford Aqua-Magic VI RV Toilet - Standard Height - Round Bowl - Slow Close - White Polypropylene
- RV Toilets
- Standard Height
- Round
- Slow Close Lid
- 7-5/8 Inch Rough-In
- Gravity Flush Toilet
- 360 Swirl - Better
- Plastic
- White
- Thetford
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: thetford rv toilets
- Shop: Thetford Aqua-Magic VI RV Toilet - Standard Height - Round Bowl - Slow Close - White Polypropylene
- Video: Checking Out the Thetford Aqua-Magic VI RV Toilet
- Shop: Thetford Aqua-Magic Residence RV Toilet - Standard Height - White Polypropylene
- Shop: Thetford Aqua-Magic VI RV Toilet - Low Profile - Round Bowl - Slow Close - Parchment Polypropylene
- Search Results: 40975
- Search Results: watchdog
- Shop: Exhaust
- Shop: Nerf Bars - Running Boards
- Shop: Trailer Wiring
- Shop: Floor Mats
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: WeatherTech Cargo Liner - Gray
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Search Results: trailer tires and wheels
- Search Results: maxxair rv vents and fans
- Search Results: 48253c969
- Search Results: shower surround
- Shop: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 26" Long
- Q&A: Availability of Thetford Aqua Magic Bravura Toilet
- Video: Thetford Toilet Riser: The Breakdown
- Video: Thetford Aqua-Magic Bravura RV Toilet: The Breakdown
- Video: Review of the Replacement Hand Sprayer for Dometic RV Toilets
- Video: A Closer Look at the Andersen Camper Wheel Chock and Leveler
- Video: MaxxFan Deluxe Roof Vent Installation - 2018 Jayco Greyhawk Motorhome
- Video: Feature Breakdown: LaSalle Bristol XTRM Universal Non-Sag Sealant for RVs
- Q&A: Will the Reese Goose Box Work On a Arctic Wolf 3660 with BAL NXG Frame
- Q&A: What Are the Frame Tabs Called That a 5th Wheel Pin Box Mount to?
- Q&A: Correct Replacement Handle for Lippert Electric Trailer Tongue Jack
- Q&A: What are the Base Dimensions of the Thetford Aqua-Magic VI RV Toilet TH37SE?
Explore Expert Info
![Our Expert]()
on RV Toilets
on RV Toilets
Samuel C.
1/12/2026
Hey Victor, how did the fit work out with the Thetford Aqua-Magic VI toilet in your RV? It sounds like the matching rough-in made for an easy swap. Your feedback could help others looking to upgrade for full-time living.