Vanshly Vacuum Breaker Kit 385316906 Compatible with Dometic/Sealand — ABS Direct-Fit, Heat-Resistant Replacement

The Vanshly 385316906 Vacuum Breaker Kit is a direct-fit replacement part designed to stop backflow and restore proper flushing function in many Dometic/Sealand VacuFlush toilets. If your RV, boat, or mobile toilet has a vacuum breaker that’s cracked, worn, or leaking, this replacement kit offers a durable, ready-to-install option made to match factory dimensions. Constructed from high-temperature ABS plastic and factory-tested for fit, the Vanshly kit is intended for a long-lasting repair on a wide range of Dometic models so you can avoid costly system replacements.

Which Dometic toilets will this part work with?

The 385316906 vacuum breaker is manufactured to be compatible with many Dometic and Sealand VacuFlush models used in RVs and marine applications. Check your toilet model number before ordering to confirm compatibility.

• Fits a broad list of Dometic models including common VacuFlush series and Traveler toilets.
• Ideal for older units where the original vacuum breaker has become brittle or damaged.
• Not compatible with Dometic hand sprayers—consult your toilet manual for exceptions.

How hard is it to install the Vanshly vacuum breaker kit?

Installation is straightforward for anyone comfortable with basic toilet maintenance; you won’t usually need specialized tools. The part is engineered to match OEM dimensions so it lines up with mounting points and seals used by the original component.

• Simple swap — remove old vacuum breaker and replace with the Vanshly kit.
• Pre-tested fit reduces trial-and-error adjustments during install.
• Video guides and model-specific walkthroughs are available online for step-by-step help.

What materials and durability can I expect from this replacement part?

This vacuum breaker is molded from high-quality ABS plastic that resists heat and aging better than cheaper materials. That makes it less prone to cracking under temperature changes typical in RV and marine environments.

• ABS construction for heat resistance and toughness.
• Manufactured to standardized tolerances for consistent fitment.
• Bench-tested at the factory to ensure functional reliability before shipping.

Will this part prevent all toilet leaks and system failures?

Replacing a failed vacuum breaker often stops backflow and many types of leak-related symptoms, but it won’t fix issues caused by other failed components. Inspect seals, valve assemblies, and plumbing connections if leaks persist after installation.

• Effective against leakage traced to a worn or cracked vacuum breaker.
• Not a solution for unrelated valve, pump, or housing damage.
• Refer to your toilet’s service manual for comprehensive troubleshooting tips.

Who is this for? This Vanshly 385316906 Vacuum Breaker Kit is aimed at RV and marine owners, maintenance technicians, and DIYers who need an affordable, OEM-compatible replacement for Dometic and Sealand VacuFlush toilets. If you have one of the supported model numbers and are experiencing backflow, intermittent flushing, or visible damage to the vacuum breaker, this kit provides a practical repair option that restores normal function without replacing the entire toilet assembly.

FAQ

Q: Is this vacuum breaker compatible with my Dometic VacuFlush toilet?

A: Check your toilet model against the supported list; the Vanshly 385316906 fits many Dometic/Sealand VacuFlush models but not hand sprayers.

Q: Can I install the kit myself without a plumber?

A: Yes — the part is designed for straightforward replacement and online videos can guide a DIY installation.