Could Dometic 301 Toilet get Replaced with a Full Size 320 Series Toilet
Updated 02/03/2026 | Published 07/30/2024
Question:
I have a 2018 Rockwood 2109. I need to replace my plastic dometic 301 plastic toilet. I’ve done read that the 301 can be directly replaced with the dometic 311 low-profile ceramic toilet without need for any modifications. However, I’m a taller guy and would like a full size height ceramic toilet. So what model would work best without mods? 310? 320! So many choices… Thank you so much!!
asked by: Malcolm
Expert Reply:
Hey Malcolm, so the lower profile toilets like the 301 part # DOM24FR that you have have a shorter distance from the flange center to the wall requirement of 8-3/4 inches compared to the larger toilets that have this dimension at 11 inches. So as long as you have the needed extra distance there you could go with a full size toilet like the 320 part # DOM87FR. So I would go ahead and check how much space you have between the center of the mounting holes to the wall and see if you can get away with a larger toilet.
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on RV Toilets
Jameson C.
2/3/2026
Hey Malcolm, did you get a chance to measure the distance from the flange center to the wall on your Rockwood? Once you checked that, were you able to go with the full-size 320 toilet? Your results could really help others trying to upgrade from the 301 model.