Saniflo 005 Toilet tank, Insulated Tank with Fill and Flush Valves, White

How is the tank insulated? Is it a plastic liner? Is it an air space between the tank wall? Is it foam glued to the inside walls and inside bottom of the tank?

My old tank internals are bad and toilet keeps running. can i use this to repair my unit? thanks, the unit was in my basement when moved here. thanks

Does this tank require the Saniflow pump to operate?

will this tank replace older center push button tank???