Tecreddy RV toilet seal kit front view, two-pack for easy replacement
Tecreddy rubber gasket close-up showing durable material
Installed Tecreddy seal on Dometic 300-310-320 toilet demonstrating secure fit
Packaging of Tecreddy two-seal kit for RV toilets
Dimensions graphic: 4-inch outer diameter and 2.75-inch inner diameter
Easy-installation step visual showing no toilet disassembly required
Durable rubber Tecreddy seal emphasizing quality material
Tecreddy RV toilet seal kit front view, two-pack for easy replacement
Tecreddy rubber gasket close-up showing durable material
Installed Tecreddy seal on Dometic 300-310-320 toilet demonstrating secure fit
Packaging of Tecreddy two-seal kit for RV toilets
Dimensions graphic: 4-inch outer diameter and 2.75-inch inner diameter
Easy-installation step visual showing no toilet disassembly required
Durable rubber Tecreddy seal emphasizing quality material

Tecreddy RV Toilet Seal Replacement for Dometic 300/310/320 – 2-Pack Gasket Kit

Restore a reliable flush seal for Dometic RV toilets Maintaining a tight seal in an RV toilet...
Vendor: Tecreddy
Availability: In stock
£32.26
£32.26
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Subtotal: £32.26
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Tecreddy RV toilet seal kit front view, two-pack for easy replacement

Tecreddy RV Toilet Seal Replacement for Dometic 300/310/320 – 2-Pack Gasket Kit

£32.26
Tecreddy RV toilet seal kit front view, two-pack for easy replacement
Tecreddy rubber gasket close-up showing durable material
Installed Tecreddy seal on Dometic 300-310-320 toilet demonstrating secure fit
Packaging of Tecreddy two-seal kit for RV toilets
Dimensions graphic: 4-inch outer diameter and 2.75-inch inner diameter
Easy-installation step visual showing no toilet disassembly required
Durable rubber Tecreddy seal emphasizing quality material

Tecreddy RV Toilet Seal Replacement for Dometic 300/310/320 – 2-Pack Gasket Kit

£32.26
Description
Description
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Restore a reliable flush seal for Dometic RV toilets

Maintaining a tight seal in an RV toilet helps conserve water, prevent odors, and ensure smooth flush cycles on the road. Tecreddy’s replacement seal kit is designed for the Dometic 300, 310 and 320 models, offering a practical, ready-to-use solution when seals wear or fail. The two-piece gasket set is molded from a durable rubber compound and crafted to match the original geometry, supporting a snug fit that you can rely on during daily use.

What’s included and why it matters

  • Compatibility: Fits Dometic 300, 310 and 320 RV toilets; references part 385311658; does not fit 210, 510, or other unlisted models.
  • Quality construction: Durable rubber with precise molding for a snug, long-lasting seal that helps maintain dependable performance.
  • Two-seal package: Includes 2 seals for convenient maintenance and future replacements.

Note: This kit is specifically designed for the listed models to ensure a targeted fit and reliable operation, reducing the guesswork during replacement.

Materials, fit and expected lifespan

The seals use a resilient rubber compound chosen for flexibility and durability across temperature changes and road conditions. Mold-made to reproduce the original seal profile, these gaskets aim to preserve a stable seal over time and minimize wear-related leaks.

Installation tips and best practices

  • Easy swap: Install in minutes with no toilet disassembly required — simply remove the old seal and place the new one.
  • Correct orientation: Ensure the marked side faces up for proper seating during use.
  • Step-by-step cue: Confirm the seal sits evenly and is fully seated before testing the flush.

Size, packaging and value

Outer diameter is 4 inches and inner diameter is 2.75 inches, matching the stated specs for Dometic 300/310/320 models. The kit includes two seals, offering a cost-conscious maintenance option that can save you the cost of a full replacement. If you have questions, Tecreddy’s customer service stands ready to assist.

FAQ

Q: What models does this Tecreddy RV Toilet Seal fit?

A: Compatible with Dometic 300, 310, and 320 RV toilets; not for 210, 510, or other unlisted models.

Q: How do I install the 2-pack seal kit?

A: No toilet disassembly needed. Remove the old seal, insert the new flush ball seal, and ensure the marked side faces up.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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