A well-known, low-cost RV toilet with a deep bowl and a soft-close seat.
Amazon $153.35
The elongated porcelain top of the Dometic range for owners who want a full residential feel.
- GravityType
- Elongated, standardBowl
- NoneDraw at 12 V
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
- Elongated porcelain bowl with 19 in seat length
- Soft-close seat
- Same footprint as the 400 and 410
- Most expensive RV toilet in the group
- Warranty not published
The Dometic 400 series family
Every Dometic 400 series model we rank, smallest first. Ratings compare each against its own type.
| Model | Type | Rating | Price |
|---|---|---|---|
| Dometic 400 Essential | Gravity | 3.7/5 | $195.69 |
| Dometic 410 Complete | Gravity | 3.7/5 | $256.49 |
| Dometic 420 Platinum (this one) | Gravity | 3.4/5 | $419.99 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | 9610008281 |
|---|---|
| Flushing | |
| Type | Gravity |
| Freshwater flush | Yes |
| Water-saver flush | Yes |
| Macerator | No |
| Control | Foot pedal |
| Power | |
| Draw at 12 V | None |
| Bowl and fit | |
| Bowl size | Elongated, standard |
| Bowl material | Porcelain |
| Household size | Yes |
| Soft-close seat | Yes |
| Seat height | 18 in |
| Rough-in | 7.6 in |
| Build | |
| Warranty | 2 years |
Alternatives in this type
A ceramic Dometic that stays frugal with water, the step up from the 300 plastic model.
Amazon $359.99A tall ceramic Thetford for buyers who want chair height without paying Dometic prices.
Amazon $286.11Compare
Compare the Dometic 420 Platinum with any other boat or RV toilet →
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