Dometic 310 vs 320: Which RV Toilet Better For You?

Dometic 310 vs 320 toilet

Last updated on January 9th, 2022 at 02:13 pm

Traveling with a recreational vehicle has become far popular to numerous North American people. A toilet may not seem polite to hear, but it is an essential part of your RV travel. 

Dometic is a reliable brand for RV toilet that has released two excellent models, 310 and 320 RV toilet. Due to the similar convenient features, many get confused with Dometic 310 vs 320. Which one should they choose? Today, we are discussing details on Dometic 310 vs 320 Comparison. As well, we review these two models.


 Dometic 310 vs 320 Comparison


Dometic 310 Toilet

Dometic 320 Toilet

Toilet seat

It has smaller seat and compact size that is best compatible with the recreational vehicle

Dometic 320 has an elongated and wider seat. And the size feels comfortable as like a house toilet.

Seat material

Its seat is made of traditional plastic that is less durable and comfortable

The seat is constructed from enameled wood that is durable, sturdy, and comfortable.

Flushing method

Dometic 310 has come with a rimless design that can flush properly at a 360-degree angle.

Dometic 320 is a low water consumption toilet that uses less water and cleans the bowl with full pressure.

Weight and space

Dometic 310 is a lightweight toilet and it needs small space to set up

It is comparatively heavier and needs more space to set up.


Dometic 310 and Dometic 320 Toilet Reviews

1. Dometic 310 Series Standard Toilet


Dometic 310 is a stylish model that is designed more conveniently for RV travel. The upper part of this toilet is slightly round-shaped, and it is very compacted. There have a plastic toilet seat and soft closing seat cover. And the lower part looks like a narrow tube. 

Toilet height:

It is a comfortable height toilet so every adult, elderly and disabled person can use it with maximum comfort. Generally, 17 to 19 inches toilet height is considered as comfort height. Here Dometic 310 has comes with a 19.75″ height that is more comfortable. 


Dometic 310 is a lucky unit for the user due to its powerful gravity flush. Gravity flush means efficient flushing with less water. Likewise, you can enjoy a dual flush toilet with an ergonomic foot pedal system. Moreover, the foot pedal allows pressing partially and fully as per the required water. 

Size and weight: 

Dometic made this 310 RV toilet compacted size that is compatible with any smaller space. That is why it is getting popular for RV travel. At the same time, the 310 model is lightweight. 


It has three amazing functions. First of all, the gravity flush function needs less water to flush. Secondly, the ergonomic foot pedal function allows adding water and flush. Lastly, the swirl jet function works for efficient cleaning.

What we like:

  • Easy installation with less labor in less space
  • Easy to transport due to lightweight feature
  • Efficient gravity flushing system with foot pedal control

Dometic 310 Specs

  • Dimension: 19 x 15 x 20 inches
  • Weight: 23.2 Pounds
  • Material: Ceramic
  • Toilet seat: Plastic
  • Toilet Type: RV Toilet
  • Toilet Flush: 360-degree vortex flush
  • GPF: 0.13gal/0.51 per flush
  • Height: 19 inches
  • Slow Close Seat: Yes
  • Hand sprayer: Optional
  • Warranty: Two Years

2. Dometic 320 Series Standard Height


Dometic 320 is a unique unit for RV traveling. It comes with a larger upper part. That means the toilet bowl is in an elongated shape and extra wider in size. The toilet seat is made of sturdy enameled wood, and they also have a soft-closing cover. 

Toilet height:

It is also a comfortable height toilet with 19.75″ height. Any adult user can get comfort to sit and stand up from this toilet. Besides, the extra larger elongated bowl offers added convenience to this unit. 


It has come with the most used gravity flush technology. So, naturally, you will need less water for flushing. At the same time, there has a swirl jet cleaning system that eliminates water uses. Additionally, the food pedal flushing button makes it low water-consuming. 

Size and weight:        

Dometic 320 is comparatively larger and wider than the 310 RV toilet. Because of the wider elongated bowl shape, it seems larger. When it comes to weight factors, then 320 is heavier than 310 units, requiring more space in your RV travel. 


It has a 360-degree angle rim cleaning function and gravity flush function. Besides, it comes with a foot pedal function. You can add water with partial pressure into the pedal and flush with full force into the pedal. 

What we like:

  • Specialized rim design can efficiently prevent the water spills 
  • It is far comfortable as a home toilet
  • The durable and adjustable wooden toilet seat

Dometic 320 Specs

  • Dimension: 22 x 14.75 x 19.75 inches
  • Weight: 36 Pounds
  • Material: Vitreous Ceramic
  • Toilet seat: Enameled wood
  • Toilet Type: RV Toilet
  • Toilet Flush: Gravity flush system
  • GPF: 1 pint/.5 liter per flush
  • Height: 18 inches
  • Hand sprayer: Optional
  • Warranty: Two Years
  • Install: RV

Detail’s Difference Dometic 310 vs 320 Toilets

Would you love to know the details difference between a Dometic 310 and Dometic 320 RV toilet? Then here are a comprehensive guide for you. 

Seat Size and Bowl Depth:

There has a significant difference between the 310 and 320 RV models in seat size and bowl depth. For instance, a 320-toilet seat is wider, and also the bowl depth is much than a 310 model. In a word, 320 means comfort as like a residential toilet. 

On the contrary, the 310 RV model is a little bit less comfortable than the 320 models. But 310 is best compatible with RV travel because it is compacted in the toilet seat. As well as the bowl depth is less than 320 model. 

Comfort level:

Your comfort is depending on the type of toilet seat and height. So, it is essential to consider the seat material. 320 model has been made in such a way so that you can get the comfort of a home. A high-quality enameled wood is used to make this seat. Good to know that enameled wood is comfortable and sturdy too. 

On the other hand, 310 is made of medium-quality thin plastic. That is why it is a bit less comfortable. Also, this plastic would be damaged or scratched because of regular use. 

Flush Design and Water Usage:

In the case of RV travel, toilet flush design and water consumption is essential. You can not get unlimited water to waste in your recreational vehicle. So, a good flushing system with low water consumption is crucial. 

Here, Dometic 310 and 320 both have come with gravity flush. Also, there has an excellent foot pedal system for flush controlling in both domestic models. 

Space and Weight:

Space and weight both have a great impact on your RV travel. Our RV has a smaller space, and we need to manage everything into that small space. So, toilet space and weight do matter. Due to the added features, a 320 Dometic is larger than a 310 Dometic toilet. 

At the same time, we would better use lightweight accessories for RV travel. In that case, RV 310 toilet is only 23. 2 pounds suitable for any RV travel. But a 320 Dometic toilet weight is 36 pounds that are too heavy for RV travel. Keep in mind that 320 is a winner in all other aspects except weight. 

Included accessories:

The manufacturing brand has produced the Dometic 320 with all required accessories to don’t buy separately. However, the Dometic 310 seat is a little bit less comfortable and durable. Many want to buy the 310 model and love to change the seat. 

Besides, 320 comes with hand sprays, but the 310 model doesn’t come with hand sprays. So, the user has to buy a hand spray separately. 


There has no significant difference between the installation process of Dometic 310 and 320 toilets. However, you may see a little bit of difference. Every manufacturing brand has published a YouTube video on its installation process. So, it will be easier for you. 

Which One Is Good For Your Travel?

Hope you have already learned from Dometic 320 and Dometic 310 toilet reviews that both of these two toilets have been created by the Dometic brand for RV travel. And each model has some advantages and disadvantages. So, you have to consider these advantages and disadvantages and make the right decision. 

For example, the 310 model comes with a compacted size, and the weight is also light recommended for RV travel. On the other hand, the 320 model comes in a larger size and heavier weight. So, here 310 is the winner.

After then, 310 toilets don’t come with hand sprays, and also, the seat is less comfortable and durable. But a 320 model comes with a durable wooden seat that is very comfortable, like a residential toilet. So, here 320 is the winner. 

Hence, the 310 model is affordable in price. But it would help if you expensed near to double bucks behind a 320 model. So, here 320 is the winner. 

Also, 320 toilet comes with all needed accessories. But you may have to buy a toilet seat and hand sprays in the case of a 310 model. So, 320is the winner here. 

Finally, we would say to consider your requirement and think what model would be perfect for you because both are great for RV travel. 


1. Can you replace an RV toilet with a regular toilet? 

No, you can’t replace an RV toilet with a regular toilet because an RV toilet is designed especially for a recreational vehicle. So, it is not compatible with another plumbing system. 

2. How do you remove a Dometic RV toilet?

Firstly, you have to switch off the water supply line and then remove the connection between the drain and toilet. After then put off all of the bolts and screws. Then lift the toilet from the floor and put it in any secure place. 

Final Words:

So, We hope you can learn many new things about the Dometic 310 vs 320 toilets that can help you make a decision. Truly speaking, both are amazing for RV travel. However, your requirements may define which one will be best for you.  

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