My Account
Shopping Cart

Dometic 385880073 MasterFlush Check Valve Kit Marine Toilet Replacement Part

Manufacturer

Dometic

<h3>Dometic: Built for Life on the Move</h3><p><strong>Dometic</strong> is a globally recognized leader in mobile living solutions, engineering products that bring the comforts of home to RVs, boats, campervans, and the great outdoors. Headquartered in Solna, Sweden, Dometic manufactures products for the outdoor, recreational vehicle, marine, and hospitality industries across the core segments of Food &amp; Beverage, Climate, Power &amp; Control, and other applications. The company sells its products in approximately 100 countries and maintains a global distribution and dealer network to serve the aftermarket.</p><h3>A Legacy of Innovation</h3><p>With over 80 years in the RV industry, Dometic has become a leader in manufacturing innovative, high-quality products that enhance the living space in RVs, motorhomes, and coaches. To master the marine niche since becoming independent from parent company Electrolux in 2001, Dometic acquired multiple companies, including SeaLand marine waste management in 2002 and SeaStar Solutions for vessel controls in 2017. Today, Dometic&apos;s product catalog spans climate control, refrigeration, sanitation, power, and more — making it a true one-stop resource for anyone who lives, works, or plays away from home.</p><h3>Climate Control for Every Adventure</h3><p>Perhaps no category defines Dometic&apos;s reputation more than Air Conditioning. Dometic&apos;s dominance of the marine AC market is the result of more than 60 years of experience building units under the Cruisair and Marine Air brands, making it the preferred marine air conditioning brand of almost all boat and yacht builders worldwide. On the RV side, Dometic offers a comprehensive range of RV air conditioners specially designed to keep travelers cool and comfortable on the road. Recent marine launches have included the Turbo Global Air Conditioning System and the Emerald Series Variable Capacity Split System Climate Control.</p><h3>Refrigeration That Goes Anywhere</h3><p>Dometic&apos;s <a href="/7321-dometic-refrigerators-200857">Refrigerators</a> are synonymous with reliable, efficient food and beverage storage in demanding mobile environments. The Dometic CRX series, for example, is a powerful compressor-driven line of refrigerators built for use in RVs, boats, and fifth wheels, available in five models ranging from 50 to 140 liters. In the RV space, Dometic earned a European Innovation Award and a Best Brand Award for its CFX3 portable refrigeration systems.</p><h3>Sanitation Solutions for RV &amp; Marine</h3><p>Completing the onboard living experience, Dometic&apos;s line of <a href="/7321-dometic-toilets-manual-electric-fixed-mount-parts-201081">Toilets, Manual &amp; Electric, Fixed Mount &amp; Parts</a> brings dependable sanitation technology to both marine and RV applications. In recognition of its broad product excellence, Dometic has received MotorHome Readers&apos; Choice Awards and Trailer Life&apos;s Readers&apos; Choice Awards for products ranging from awnings to toilets and HVAC systems. These sanitation products are engineered to be compact, low-odor, and easy to maintain — critical qualities when living in the confined spaces of a vessel or coach.</p><h3>Why Choose Dometic?</h3><ul style="list-style:disc"><li><strong>Global expertise:</strong> Products engineered and validated for demanding marine and RV environments worldwide.</li><li><strong>Broad ecosystem:</strong> From climate and refrigeration to power and sanitation, Dometic covers nearly every system onboard.</li><li><strong>Proven reliability:</strong> Dometic provides outstanding performance with minimal power consumption, and their innovative products have earned countless awards for design and functionality.</li><li><strong>Sustainability focus:</strong> Dometic is committed to energy-efficient production methods and recyclable materials, enabling customers to live sustainably on the road or on the water.</li></ul>

Part Number

385880073
09/12/2036 7:01 AM
Sale Price

$85.17

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Dometic 385880073 is an OEM replacement check valve kit designed for Sealand/Dometic MasterFlush marine toilet systems. The check valve plays a critical role in the flush cycle, preventing backflow through the water supply line and maintaining proper pressure and flow within the toilet's macerator-based sanitation system.

Key Features:

  • Genuine Dometic OEM replacement part (MPN: 385880073)
  • Designed for Sealand/Dometic MasterFlush 8100, 8600, and 8900 series toilets
  • Prevents backflow in the freshwater supply line during and after flushing
  • Restores proper flush performance when original valve becomes worn or fails
  • Complete kit includes check valve and necessary hardware for installation
  • Built to Dometic factory specifications for long-lasting, reliable performance

Over time, check valves in marine toilet systems can wear, crack, or fail, leading to inconsistent flushing, pressure loss, or water leakage. Replacing the check valve with this genuine Dometic kit is a straightforward repair that restores full system function. This part is also sold under the Sealand brand, as Dometic acquired Sealand and continues to support the MasterFlush product line with genuine replacement components.

Website was easy to order from.

Great service

Great

Great service

Quick and easy transaction

Great pricing!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy