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RV Toilet Seal Replacement for Dometic 300 310 320 - Flush Ball Seal Gasket Kit 385311658, High-Grade Rubber Gaskets for RV Toilet Leak Repair, 2-Pack

4.4 (1) Write Review
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$6.59

$ 2 .99 $2.99

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  • Fix Leaks and Odors: Specifically designed to fix common issues like water leakage and unpleasant odors in Dometic 300, 310, and 320 RV toilets. This gasket keeps water securely in place and prevents bad smells for a cleaner, more efficient flushing experience.
  • Perfect Compatibility: A direct replacement for the 385311658 RV toilet seal kit, this gasket fits Dometic 300, 310, and 320 models. Does NOT fit models 210, 510, or other unlisted models.
  • Durable, High-Quality Material: Made from a premium rubber blend for exceptional durability, wear resistance, and long life. Manufactured using original device molds to ensure a precise, tight seal that easily solves water leakage problems during your travels.
  • Quick and Easy Installation: Installation takes just minutes! No need to remove the toilet—simply pop out the old seal, place the new one in with the "THIS SIDE UP" label facing upward, and ensure it's fully seated.
  • Trusted Customer Support: Backed by a 30-day return and exchange policy. If you have questions or concerns, our dedicated customer service team is available 24/7 to assist you, ensuring a worry-free experience.


Product Description

385311658 flush seal

RV Toilet Seal Replacement for Dometic 300 310 320 RV Toilet Gasket Flush Ball Seal Kit

  • Designed to replace the 385311658 RV toilet seal kit.
  • DOES NOT FIT MODELS: 210 510 or Other Models Not Mentioned.
385311658

Installation Steps

  1. Turn off the water supply.
  2. Open the flush ball by pressing the flush pedal.
  3. Remove the old seal by grasping it from underneath and pulling it out.
  4. Clean the rim and bowl area where the old gasket was seated.
  5. Release the flush pedal to close the flush ball.
  6. Clean the flush ball thoroughly.
  7. Install the new seal with the flush ball closed. Press outward to ensure it is firmly in place.
  8. Lubricate the gasket where it contacts the flush ball, with the flush ball reopened.
  9. Open and close the flush ball a few times, then press down on the gasket to confirm it is properly positioned.
  10. Turn the water supply back on, add water to the bowl, and check for leaks.

Jill
Reviewed in the United States on February 16, 2025
It does what it is supposed to do. My old seal was letting the water drain instead of keeping some in the bowl. This fixed that issue and was a good fit. Install is going to be the same no matter which kind you get, you just have to take your time and get the seal on.No need to remove anything special to replace. Just pull off the old seal, be careful to not drop this in the tank as you'll need to depress the flush valve to give yourself room to install. I'm good to go now.