Can The Dometic 310 RV Toilet Replace A Dometic 210

Updated 11/17/2025 | Published 12/21/2024

Question:

I have a 210 Dometic toilet installed in my 2013 Fleetwood Discovery 40X. Will the Dometic 310 fit in my coach?

asked by: Mike L

Expert Reply:

Hey Mike,

I was unable to find the rough-in requirements for the 210 but you can measure your rough-in to see if the Dometic 310 Part-Timer RV Toilet # DOM57FR would fit. The # DOM57FR requires 10" of space from the flange bolts back to the wall. I've attached a little diagram below showing how to measure for the rough-in as well.

expert reply by: Kevin C

Measuring For Fit of RV Toilet
(click to enlarge)

Jon G.

11/17/2025

Hey Mike, were you able to measure the rough-in space for your Fleetwood Discovery to see if the Dometic 310 fits? Once you have that measurement, I can help confirm whether it’s the right match.