Dometic OEM Base Seal & Mounting Kit – 300/400 Series
$28.50 on Amazon.com (as of October 14, 2026, 6:49 PM EST) View details ↗
Upgrade your RV toilet installation with the Dometic OEM Base Seal and Mounting Hardware Kit, the exact replacement for Dometic 300 and 400 Series toilets and compatible Sealand models.
Built for rugged travel conditions, this kit features corrosion-resistant components and vibration-proof fasteners to prevent shifting or leaks during transit. The included rubber flange seal and durable mounting hardware ensure a secure, long-lasting fit. Whether you're reinstalling after service or replacing worn parts, this genuine OEM kit delivers factory precision. All hardware caps are finished in white for a seamless look. Factory-direct Dometic parts guarantee compatibility and reliability.
| Compatibility | Dometic 300 & 400 Series toilets, Sealand toilets |
|---|---|
| Key Components | Rubber flange seal, mounting hardware, white hardware caps |
| Material | Corrosion-resistant metal and rubber |
| Primary Function | Prevents toilet movement and leaks during travel |
