The Ultra-Fab Ultra Scissor Jack # UF48-979006 that you mention will affect the ground clearance on your 2020 Casita Independence TT.
When collapsed, this jack measures 4-3/4" tall, so if your OEM jacks are less than that then these would give less ground clearance.
Since the collapsed height of # UF48-979006 is still relatively compact this should not take away enough ground clearance to prevent you from going up your driveway.
Additionally, these jacks have 24" of lift, and have a... view full answer...
Yes, the RV Propane Gas and Carbon Monoxide Detector # RS34FR can be used to replace your 3-wire Atwood Detector. The third wire is just an extra power supply wire in case your first power source were to be depleted. Most likely you have power directly from the battery with the second being wired to your trailer's DC distribution panel in the power center. You can just cap off the secondary power when installing the # RS34FR. view full answer...