Question on RV toilet replacement

Yes

Sewer pipe is always the same, same for the rough in.

Here is a conversion chart.
Toilet selection chart
I personally would use a better unit with a wider base. I switched to a Bravura.

enblethen wrote:

I personally would use a better unit with a wider base. I switched to a Bravura.

X2 on that!!

Thank you's go out to all 3 Senior Members who responded so quickly. You all concur so I am confident going forward. Love the chart that Bud attached.

Moved from Forum Technical Support

I like the Dometic porcelain styles better.

The only difference is the V is taller than the IV, so if the water connection doesn't have a couple of inches of vertical play, you will need an extension of some sort- a plastic 1/2"x1/2" male nipple plus a short faucet connector with 1/2" swivel on each end will do the trick.

I also want to replace my current Aqua Matic IV toilet for a higher toilet stool.
What do you feel is a better buy, another Thetford or a Dometic toilet?