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The Dometic 974 Portable Toilet with integrated MSD (Manual Sanitation Device) delivers reliable sanitation for RVs, boats, and remote locations where permanent plumbing isn't available. This self-contained unit features a 5-gallon holding tank with manual pump-out capability, making waste disposal simple and hygienic at approved dump stations. The durable gray construction resists stains and odors while the full-size seat height provides home-like comfort.
Key Features
- Integrated MSD System: Manual sanitation device allows direct pump-out at dump stations without removing the holding tank
- 5-Gallon Holding Capacity: Large waste tank reduces frequency of emptying for extended trips
- Full-Size Comfort: Standard residential-height seat provides ergonomic comfort for all users
- Durable Gray Construction: Stain-resistant polyethylene housing withstands UV exposure and temperature extremes
- Sealed Valve System: Prevents odors from escaping into living space when closed
- Portable Design: Self-contained unit requires no permanent installation or external plumbing connections
Technical Specifications
| Part Number | 9108552690 |
| Model | 974 MSD |
| Holding Tank Capacity | 5 Gallons (18.9 Liters) |
| Color | Gray |
| Sanitation Type | Manual Sanitation Device (MSD) |
| Seat Type | Full-Size Residential Height |
| Construction Material | High-Density Polyethylene |
Frequently Asked Questions
What's the difference between MSD and standard portable toilets?
The MSD (Manual Sanitation Device) feature allows you to pump waste directly from the toilet to a dump station using an external hose connection, eliminating the need to carry the holding tank. Standard portable toilets require you to detach and carry the waste tank to a disposal point.
How do I empty the Dometic 974 with MSD?
Connect a standard RV sewer hose to the MSD port, open the valve, and use the manual pump handle to evacuate the holding tank contents directly into the dump station. You can also remove the holding tank for traditional emptying if preferred.
Can this toilet be permanently installed in an RV?
While the 974 is designed as a portable unit, it can be secured in place using mounting brackets. However, it's self-contained and doesn't connect to external fresh water or black tank systems like permanent RV toilets.
What chemicals should I use with this toilet?
Use Dometic-approved holding tank treatments designed for portable toilets. These chemicals break down waste, control odors, and protect the seals. Avoid harsh household chemicals that can damage the valve seals and tank materials.
Why Choose Elkhart RV Parts?
We specialize in hard-to-find Dometic RV sanitation parts and accessories. Located in Elkhart, Indiana — the RV Capital of the World — we provide fast shipping on genuine OEM parts backed by expert technical support. Whether you need replacement seals, valves, or complete portable toilet units, our team understands Dometic systems and can help you find exactly what you need.
| Brand | Dometic |
|---|---|
| Model | 974 |
| Part number | 9108552690 |
| Product type | Portable Toilet |
| Color | Gray |
| Features | Integrated Marine Sanitation Device (MSD)Odor ControlWaste Containment |
| Applications | RVMarine |
| Dimensions | {"Width"=>"13.5\"", "Depth"=>"15.5\"", "Height"=>"12.5\""} |
| Weight | 13 lbs |
| Certification | Meets Marine Sanitation Standards |
| Condition | New |
| Type | OEM Part |
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Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.