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Halotronics RV Toilet Valve – Dometic 385311641 Fit

$9.99 on Amazon.com (as of October 15, 2026, 10:22 AM EST) View details ↗

Upgrade your Dometic Sealand pedal-flush toilet with this direct-fit water valve replacement from Halotronics. Designed to stop leaks and restore strong flush performance, this OEM-compatible kit replaces part number 385311641 and fits models 300, 301, 310, 311, 320, and 321—no guesswork, no mismatches. Built with freeze-resistant ABS plastic, this valve resists cracks and leaks, ensuring reliable operation in campers, motorhomes, and boats.

Installation is simple—no plumber required. The kit includes all necessary parts (hose clamp, mounting screws) for a complete repair in minutes, so you can skip costly service calls and hit the road again fast. Confirm your toilet model and old part number (385311641) before ordering to guarantee a perfect fit. Whether you're addressing a weak flush or preventing water damage, Halotronics delivers durable, leak-resistant performance for your RV’s black tank system.

CompatibilityDometic Sealand models 300, 301, 310, 311, 320, 321 (replaces OEM 385311641)
MaterialFreeze-resistant ABS plastic
IncludesWater valve, hose clamp, mounting screws
Which Dometic Sealand toilet models does this valve fit?
This Halotronics valve is designed for models 300, 301, 310, 311, 320, and 321—verify your unit’s model number before ordering.
Do I need a plumber to install this replacement?
No, the kit includes all necessary parts and is designed for DIY installation with common hand tools.
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