RV Toilet Installation Info Request

[Old Nuke]

Hi Folks
Being new to RV plumbing I have a couple questions regarding the installation of a Sealand Traveler Lite into our renovated (in process) '57 AS Flying Cloud.
Is there any difference between the flange used for RV toilets and household toilets?
I know that RV toilets use a rubber seal versus the wax seal used on household toilets. Is it usually included with the new toilet?
Do I need to install a vacuum breaker in the flush water supply line or is that integrated into the toilet's plumbing?
Thanks in advance for your help and advice.

[n2916s]

My Sealand Traveler Lite came with the seal and new hardware. The vacuum breaker is part of the toilet -- all you do is hook up the water.

My flange was the threaded type and had provision for either two or four closet bolts (incl.).

mike