Separett Weekend Prime
For off-grid cabins, emergency kits and camps with no power: Separett’s compact body without the fan, at a much lower price.
Amazon $549$549
The Separett Weekend Prime is the better toilet overall, rated 4.3 to 3.8. The Separett Weekend Prime leads on warranty and value. The Separett Weekend Prime costs $84 less ($549 vs $633).
Sun-Mar GTG
Sun-Mar’s low cost urine-diverting toilet for cabins, boats and RVs, with a normal seat height and a tiny fan draw.
Amazon $633$633
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Separett Weekend Prime for warranty (5-year warranty vs 3-year warranty) and value ($549 vs $633).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every urine-diverting toilet; a clear win is highlighted. How we rank explains each one.
| Factor weight | Separett Weekend Prime | Sun-Mar GTG |
|---|---|---|
| Overall rating | 4.3/5 | 3.8/5 |
| Value 30% | 91 $549 | 77 $633 |
| Capacity 25% | 65 solids capacity not published, 2 gal urine bottle, urine can drain | 50 capacity not published (neutral score used) |
| Power 15% | 100 needs no power | 100 0.6 W fan |
| Certification 15% | 50 NSF/ANSI 41 certification not stated (neutral score used) | 50 NSF/ANSI 41 certification not stated (neutral score used) |
| Warranty 15% | 100 5-year warranty | 50 3-year warranty |
Specifications
| Separett Weekend Prime | Sun-Mar GTG | |
|---|---|---|
| Capacity | ||
| Type | Urine-diverting | Urine-diverting |
| Urine bottle | 2 gal | - |
| Urine drain option | Yes | No |
| Agitator | No | - |
| Power and venting | ||
| Power | None needed | 12V |
| Fan | - | 0.6 W |
| Build | ||
| Seat height | 17.8 in | 18 in |
| Dimensions | 15.7 x 19.6 x 18.5 in | 15.75 x 24 x 19.8 in |
| Weight | 18.5 lb | 33 lb |
| Material | High-gloss polypropylene outer; polyamide and polypropylene inner | - |
| Warranty | 5 years | 3 years |
| Released | 2025-11-17 | - |