OEM vs Aftermarket RV Toilet Seal: Is Genuine Worth the Extra Cost?
✓ TL;DR Genuine Dometic and Thetford seals cost more, but they come with manufacturer-confirmed fit information and clearer product documentation. Aftermarket seals are often cheaper and can be reasonable alternatives when the exact model and part compatibility are well documented. This guide compares Dometic’s 385311658 and Thetford’s 34120/42141 so you know what to verify before … Read more