We do have the ceiling garnish you are looking for that fits your MaxxFan Deluxe Roof Vent # MA00-06200K.
What you need is the part you mentioned, the Ceiling Garnish for MaxxAir Maxxfan RV Roof Vent - White # MA54FR.
We assign our own part numbers, but this is the exact 10-20211 garnish you were asking about. view full answer...
It sounds like you're talking about the Lippert RV Door Shim Installation and Alignment Kit # LC84HD. This is listed as part 709983 on the Lippert site if you're looking to cross-reference and make sure this is what you're needing. view full answer...