Can Dometic 310 RV Toilet Replace Thetford 42072
Updated 12/08/2025 | Published 11/26/2025
Question:
Will this replace a 42072 Thetford?8
asked by: ROCHE B
0
Expert Reply:
Hi Roche; the Dometic 310 RV Toilet # DOM37FR can replace your Thetford 42072 as long as your rough-in measurement is at least 10". That is the distance from the wall to the center of the floor flange (see the attached picture).
expert reply by:
Robin H
0
Rough-In Measurement
(click to enlarge)
(click to enlarge)
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Robin H.
12/8/2025
Hi Roche, how did the swap from your Thetford 42072 to the Dometic 310 toilet go once you checked that 10-inch rough-in? Knowing what worked might help someone else making the same replacement.