The best RV toilet with an elongated bowl depends on your priorities: the Dometic Model 420 offers an elongated porcelain bowl and a stated universal 2-bolt mount, while SEAFLO’s 19-inch model pairs an elongated porcelain bowl with a taller residential-style height. Lippert’s Flow Max is a strong option for buyers seeking a ceramic bowl and full-size seat. Compare bowl material, seat height, mounting dimensions, and flush operation before choosing, because RV toilet fit depends on your bathroom’s existing layout.
| Product | Best For | Notable Feature |
|---|---|---|
| SEAFLO SFRTCH-02-01 | Taller seating and porcelain | 19-inch height; elongated ceramic bowl |
| SEAFLO SFRTPH-01-01 | Plastic construction | 18.4-inch height; foot-pedal flush |
| Lippert Flow Max | Residential-style ceramic bowl | 18-inch profile; easy-close seat and lid |
| Voyager Plus | Cold-weather use | Water valve rated to operate down to -40°F |
| Dometic Model 420 Platinum | Elongated-bowl replacement | Porcelain bowl; universal 2-bolt mount |
SEAFLO 19-Inch Elongated Porcelain RV Toilet
This SEAFLO model is best for RV owners who want an elongated ceramic bowl and a higher, 19-inch seat height. Its gravity-flush system uses a foot pedal and offers adjustable water flow. The product dimensions are 20.51 by 14.17 by 19 inches, making measurement important before purchase.
The non-porous porcelain bowl is described as resisting stains, odor retention, and buildup. The base is lightweight plastic, and the toilet includes a soft-close seat. It is selected for buyers prioritizing an elongated bowl, porcelain cleaning surface, and residential-style height. A 4-year limited warranty is listed.
Limitation: Its 19-inch height and listed dimensions may not suit every compact RV bathroom. Confirm available clearance and plumbing alignment first.
SEAFLO 18.4-Inch Gravity-Flush RV Toilet
This SEAFLO is best for buyers who prefer a lightweight plastic toilet with a taller, 18.4-inch seat. It has a foot-pedal gravity flush, an oversized anti-stick bowl, and a soft-close seat. The listed dimensions are 17.8 by 15.3 by 18.4 inches, and the product information says it fits standard RV plumbing.
Its 2-bolt mount and stated 9.5-inch rough-in fit information help shoppers compare it with an existing installation. The product is listed as tested to IAPMO TS 1 and IAPMO Z124 standards and includes a 4-year limited warranty. Choose it if a lighter plastic body matters more than having a porcelain bowl.
Limitation: The product details do not specifically identify the bowl as elongated, and the floor flange is sold separately. Verify both bowl shape and installation parts for your setup.
Lippert Flow Max Ceramic RV Toilet
The Lippert Flow Max is best for buyers seeking an 18-inch standard-profile toilet with a ceramic bowl and full-size residential seat. The product description identifies an easy-close seat and lid, plus a foot pedal for hands-free flushing. Pressing the pedal partway adds water to the bowl; pressing it fully flushes.
Its 100% ceramic bowl is the main reason to consider it over plastic-body options. The easy-close lid is another useful comparison point for households wanting a residential-style design. This model is included because it combines ceramic construction, foot-pedal operation, and a stated elongated bowl.
Limitation: The supplied product details do not provide installation dimensions or a rough-in measurement. Check fit requirements with the seller or product documentation before replacing an existing toilet.
Voyager Plus Residential-Height RV Toilet
The Voyager Plus is best for RV owners who prioritize cold-weather operation and porcelain construction. Its product information says the built-in water valve operates in temperatures down to -40°F. It also has an ergonomic foot pedal and adjustable water flow, allowing users to control flushing water.
The porcelain bowl gives this model a residential-style surface, and hands-free pedal operation makes it a practical alternative to toilets with hand-operated controls. Choose it if the stated freeze-resistant performance is relevant to your travel conditions.
Limitation: The available details do not specify bowl shape, seat height, dimensions, or mounting measurements. Confirm that it is elongated and fits your RV before treating it as a direct replacement.
Dometic Model 420 Platinum Elongated Toilet
The Dometic Model 420 is best for buyers seeking an elongated porcelain bowl and a replacement-friendly mounting design. It has an 18-inch chair-height profile, gravity flush, and soft-close seat. The scratch-resistant porcelain surface is described as easier to clean and resistant to stains and odors.
Dometic states that its universal 2-bolt mount fits a standard RV rough-in of 7.625 inches or greater. That makes this option worth comparing when replacing an existing toilet, though measurements still need to be checked. The product is selected for its clearly stated elongated bowl and porcelain construction.
Limitation: The rough-in statement does not establish compatibility with every RV. Compare the actual floor flange, footprint, and available space before ordering.
Buying Guide: How To Choose An Elongated RV Toilet
Will the toilet fit the existing bathroom?
Measure the current toilet’s footprint, rough-in, floor flange, and surrounding clearance. Compare those measurements with the replacement’s listed dimensions and mounting details. A toilet described as fitting standard RV plumbing may still differ from your existing setup. For a direct swap, check bolt spacing and whether required mounting parts are included or sold separately.
Should you choose porcelain or plastic?
Porcelain models are a good fit for shoppers who want a ceramic bowl and a residential-style surface. The SEAFLO 19-inch model, Lippert Flow Max, Voyager Plus, and Dometic Model 420 list porcelain or ceramic bowl construction. The SEAFLO 18.4-inch model uses lightweight durable plastic. Choose based on material preference, installation needs, and the product’s stated dimensions.
How important is seat height?
Compare the stated height with the people who use the RV and the available room. The listed heights range from 18 inches for the Lippert Flow Max to 19 inches for the SEAFLO elongated model. Height alone does not confirm comfort or fit, so check the manufacturer’s measurement reference and the bathroom’s clearance.
Which flush and weather features matter?
Foot-pedal gravity flush is listed on several models, while the Voyager Plus specifically lists adjustable water flow and a water valve designed to operate down to -40°F. If winter use is important, review the product’s cold-weather instructions and RV plumbing protections. Do not assume every toilet is freeze-proof based only on its material or flush type.
Frequently Asked Questions
What does an elongated RV toilet bowl mean?
An elongated bowl has a longer shape than a round bowl. Check the product description and dimensions to confirm bowl shape before buying; not every residential-height RV toilet is identified as elongated.
Are all RV toilets with porcelain bowls elongated?
No. Bowl material and bowl shape are separate specifications. Look for an explicit elongated-bowl description, as provided for the SEAFLO 19-inch model and Dometic Model 420.
Can a residential-height RV toilet replace a standard RV toilet?
It may, but height does not confirm installation compatibility. Compare rough-in, mounting style, footprint, plumbing, and bathroom clearance before replacing a toilet.
Is a 2-bolt mount enough to guarantee a fit?
No. A 2-bolt mount is one installation detail. Also verify rough-in measurements, floor-flange position, overall dimensions, and any required parts.