What Is the Tallest RV Toilet Available?
Updated 09/15/2026 | Published 09/09/2026
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Question:
what is the height of your tallest tv toilet model
asked by: Fred G
Expert Reply:
Hey Fred.
RV toilets come in many different configurations. If we are simply looking for the tallest seat possible, then the Thetford C402C Cassette Toilet # TH99UE holds the crown at 19-7/8". Now, this is a cassette toilet and is not a normal replacement for a black-tank toilet. The tallest gravity-flush toilet will be the Dometic 420 RV Toilet # DMC67JF this one comes in at 18". This will be a direct replacement for your conventional black-tank setup.
What are you looking for exactly? some more info will help me narrow this down for you.
Product Page this Question was Asked From
Dometic 510 RV Toilet - Standard Height - Elongated Seat - White Ceramic
- RV Toilet
- Standard Height
- Elongated
- 11 Inch Rough-In
- Gravity Flush Toilet
- Full-Rim - Best
- Ceramic
- White
- Dometic
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