Based on the pictures you sent in you are in need of the MB Sturgis Propane Hose - 3/8" Female Flare x 3/8" Female Flare Swivel - 15' Item # MBS57FR. If you need just a 12' hose then you'll want the MB Sturgis Propane Hose - 3/8" Female Flare x 3/8" Female Flare Swivel - 12'Item # 100041-144-MBS. view full answer...
We don't currently offer Dometic's line of AC systems, but we can still get you back to where you want to be. If you still have the old air distribution box and controller then you can reinstall them and use the Furrion Chill HE Replacement RV Air Conditioner # FR42PV or # FR32PV. These come with a wire harness adapter to connect to a 9-pin port on the controller. This would simply replace the rooftop condenser unit and allow you to reuse you Dometic equipment.
If your you can't reuse... view full answer...