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When you're living full-time in your RV or on your boat, a comfortable toilet isn't a luxury. It's a necessity. The Dometic 510 has a full-height seat, and a ceramic bowl that feels like home every time you sit down.
If you spend weeks or months living in your RV or on your boat, comfort in the bathroom is a must. The Dometic 510 sits at standard household height, so there is no awkward balancing act or deep knee bend, and the elongated wooden seat is shaped for real support. The sturdy ceramic bowl brings that at-home feel, and the lightweight polypropylene base keeps extra weight out of your rig. Full-timers say the extra room and familiar setup make all the difference, especially compared to cramped, round-seat options. If you're looking for an upgrade from small RV toilets, the Dometic 510 delivers everyday comfort that feels like home.
A ceramic bowl isn't just about looks, it's easier to keep clean. The glazed surface is less porous than plastic, so stains, odors, and grime have a harder time sticking around. You can brush it out without scratching the finish, which means less scrubbing and a fresher bathroom day after day.
To make sure this toilet fits your RV, measure from the wall to the center of the floor flange. This is the rough-in measurement and you'll need at least 11" for a proper fit. If your current toilet is still installed, you can measure from the wall to the mounting bolts for a good estimate of the flange location. Just keep in mind that an offset flange or a 4-bolt toilet can throw off this measurement, so if you're not sure, removing the old toilet is the best way to double-check before you order.
Customer Satisfaction Score:
88% were satisfied with this product
12% of customers were not satisfied
Ratings & Reviews
Thank you for the quick service and fantastic product! I installed it today and head out tomorrow!
BE AWARE BEFORE YOU ORDER. This is NOT an ELONGATED SEAT toilet. It is a regular ROUND toilet seat. We thought we were upgrading to a roomier elongated bowl/seat. Very disappointing. But we had to install it anyway since our old toilet was leaking and were full-timers. So, it is what it is now. So we're making it work. It is a good rv toilet. Just not what we thought we were getting.
I install a whole bunch of RV toilets and this is apparently the new version of the old 320. Pretty nice, has two regular closet flange bolts and two large lag bolts that mount the rear end of the toilet to the base of the floor. Be aware that the water inlet and flush pedal is on the opposite side of all other Dometic toilets. Be prepared to make the necessary water line adjustments. Very nice porcelain throne with sprayer
It didn't fit in my motorhome, and I was told by a very rude woman when I called about it that there would be a restocking fee charge to retune it and I would need to pay return shipping. I never did use it. I wound up putting it in a junk pile and lost almost $500.00 I paid for the toilet. Bought another toilet somewhere else.
Ordering was a breeze and the tracking information providid made tracking easy. The package arrived a day early (only 2 days to receive). When i opened package I was impressed with the care taken to package toilet with all the extra support inside box. Installation was easy and all parts were there for install except I had to get a length of hose and a splice fitting with clamps for water line. That is to be expected though. My old toilet flush was on right side and not as much hose was needed. The only reason I did not give five stars is that the toilet seat was cracked where it screws to lid. I am replacing it anyway because I prefer a no slam lid. Other than that first rate service and product. Thank you!!
This is a great toilet works perfectly. Very easy install in my case, I removed a Dometic model 210 and installed the 510.
Was thinking about the 320 that also has great reviews until I found out if the foot pedal breaks you need to replace the the toilet. Dometic doesn’t make any replacement pedal parts.
I ordered a new toilet for my camper and it showed up damaged from shipping.
They had another one in the mail that day. It showed up damaged as well. Jim had another one shipped right out and it showed up perfect. They stand behind their products and their service is outstanding! etrailer has all my business and would recommend them to any one.
Excellent toilet and sprayer. Works great. Easy to install. Only problem is sprayer is over priced. It is not RV specific. It is the same one you find in your kitchen. You can pick one up from any hardware store for half the price. Just being honest.
excellent product , totally satisfied
So here's the story, I ordered this commode from the trailer paid for express shipping and I received it in 2 days. When I open the box to install it had a crack in the ceramic Bowl. I called the trailer at a 5:00 p.m. in a panic as we were leaving in 3 days for our trip of 5 weeks. They immediately responded and sent me a replacement, overnight at their expense. Happy ending to this Saga is I received the replacement with 36 hours to spare. Everyone I talk to on the phone was more than accommodating and concerned that I was happy. I am!.
Exactly as described. Exactly what I wa nted
Really looking for one year follow up. Toilet broke other day. Had to pay for another to get the warranty reimbursement. Plus I have to pay the shipping back on the toilet u sold me. Hmm great deal. Hope I get another 2 year warranty. No faith in this product.
Sierra K.
1/20/2022
Under the warranty, you are responsible for return freight. We will cover the cost of shipping the replacement item to you. You do not need to pay for another item unless you upgrade toilets.
installed easily, its kinda weird that the foot pedal is on the oppossite side as to what I'm used to and at 45psi the water comes out along the rim about a third of the way around so you kinda have to use the sprayer every time and they have installed all the foot pedal valve assembly on the outside of the pedestal so if you ever need to change it out the toilet can stay bolted to the floor it has a nice chrome sprayer that works well
Michael B.
12/8/2023
a year on and the seat haa been replaced and the sprayer nozle has kinda fallen apart, but I reassembled it. I had envisioned a better flush but not unless you are above 60psi does the water make it all the way around the rim, so I spent the extra, what I did find out is any old toilet with a sprayer works the best
etrailer offered this specific toilet and had it in stock. It promptly shipped and was a comprehensive kit including flush valve, vacuum breaker, seat, flange bolts, and floor seal. However there was no sprayer wand or connection for one. I had to salvage parts from my old toilet and swap them out to have the sprayer. Critical to the install was the floor flange. In pursuit of trying to acquire a replacement floor seal for my old toilet I could never get the one that was made specifically for the model 510. The correct seal was in the install kit and I have a dry bathroom floor for the first time in months. And now that I know what I am looking for in a floor seal I see that I can buy (the correct) seal from etrailer.
I replaced a 4 year old Dometic 320 that had an internal failure leasing us to believe that the toilet ring was bad. Both toilets are called elongated but the 510 is not really. That is why I didn't give it a 5 rating. It does look a lot more repairable and that is important. The plastic cover that snaps on the flush pedal is cracked out of the box, shown it pictures. Note, I do not have the bottom cover installed as I want to use the toilet multiple times and check for leaks prior to installing the cover.
etrailer is always good and they deserve their usual 5 star rating.
Brooke M.
4/21/2025
Thank you for the kind words, but I am sorry to hear that the cover came cracked like that, Robert. Let me look into this for you!
I love it. Perfect size
The sprayer kit leaks
Jenny N.
7/29/2022
I reached out to the manufacturer and they advised that they felt like the gummy substance is coming from the fresh water tank. They recommend to go ahead and drain the tank then clean it out before hooking it up again.
Just put it in today and it fit perfect ly
Joe
9/26/2025
It worked great no problems
Lazer S.
9/26/2025
Such a dissapointment. For the arm and leg it cost to purchase, we expected better. A few months after purchase, the seal failed. We were told to contact Dometic, which we did and they sent a new seal. So here we are again, a few months down the road and the seal has again failed!! My husband works long hard hours and changing the seal every few months is NOT what we planned for. The “Full Timer” must stand for full time maintenance. We do live in our motorhome and I am a stay at home retired wife. The toilet looks nice, has a large bowl which, by the way, needs more frequent cleaning. The bowl is flatter at the bottom so water does not rinse as well as our old toilet which had steeper sides allowing more water to flow down the sides, and in mho, makes for a cleaner rinse. If this makes sense. So would not purchase again and will most likely sell the RV for a larger more roomy RV. Which means by by Dmetic.
If you have ever had problems with the ball valve on MOST RV toilets you know many times they are not fixable. Well the Dometic 510 does have a replaceable ball valve. We've had this toilet for over 1 year and it is a great toilet. Here are some things you might want to know:
1. It mounts a little further from the wall than most RV toilets. So you may need to modify the plumbing slightly.
2. The Dometic 510 flush pedal is on the left side which is different.
3. To fill the bowl with water, you lift the pedal rather than just step on it lightly.
4. The lid and seat are heavy.
5. The toilet comes with a very nice trim piece to hide all the hoses and valve.
6. They call it elongated seat but it's not.
I think this is a must have toilet for 1 simple reason: You can get repair parts for everything on this toilet.
Toilet works great in our motorhome.
Excellent service and speedy delivery! I delt with Amy J. and she was more than Awesome!! I received exactly what I ordered in perfect condition.
Thanks Amy J.
This Toilet Stinks!
We are full-timers and wanted the best toilet we could find.
2x (TWICE) the "hose clamp" that holds the bowl to the plastic base has loosened up and the toilet has leaked its contents all over the floor (and down into the "basement"). Also, I have had to overhaul the seal, spring, ball valve already. Short story long, I expected so much more from a VERY pricey crapper!
I am a little disappointed with the 510 it did not arrive with the supposed spray hose that was supposed to be included. It seems not to different than the much cheaper 320. It is supposed to be more like a regular residential toilet but it falls short in many ways. I had to buy my own spray hose and tee connectors to complete my installation. I could not wait to talk with you about getting a replacement and had to do what was needed at the time.
I just feel like I have been taken. This was not what I expected. I am usually not one to make a complaint. I usually chalk it up to a bad purchase and forget about it .
But it seems you wanted my comments so this is why I have responded.
Very much like a home toilet: solid with a deep bowl. The two-way flush pedal is especially handy for filling the bowl when adding Happy Campers tank treatment. The bowl-encircling water inlet aids cleaning the bowl.
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Daniel
5/12/2023
Great