Great question,
The 310 is a replacement for the 300 and the 310 is not as big or hardy as the 320. When I think of an RV toilet I think of the 310. When I think of a residential toilet for an RV, the 320 is something that come to mind.
Dometic 310 Part-Timer RV Toilet - Standard Height - Round Bowl - Slow Close Lid - White Ceramic # DOM57FR.
Overall dimensions: 18-1/2" long x 15" wide x 20" tall
Seat length: 15-1/4"
Seat thickness: 2-3/4"
Seat cutout dimensions: 10-3/4" long x 8" wide
Bowl... view full answer...
The main difference between the Dometic 310 Part-Timer RV Toilet # DOM57FR and the Dometic 311 Part-Timer RV Toilet # DOM67FR is that the 310 is standard height (20" tall) and the 311 is a low profile (15-1/2" tall). Both toilets will mount the same and have predominantly the same features. There are a few other small measurement difference but none as big as the height difference.
310 Measurements:
Overall dimensions: 18-1/2" long x 15" wide x 20" tall
Seat length: 15-1/4"
Seat thickness:... view full answer...
The biggest difference between the Dometic 310 part 302310093 you've currently got and the Dometic Part-Timer # DOM57FR is that the Part-Timer comes with an all wood, slow-close seat where your existing model is the retail model that comes with the plastic seat. The other difference is the color, since the # DOM57FR is white where your old toilet is considered a "bone" color. There is a slightly different color available of the 310 Part-Timer with the Dometic Part-Timer RV Toilet - Standard... view full answer...
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