These houses include the following options, 1)Make It Large 2)Window 3)Infared bulb upgrade 4)The petsafe door upgrade LARGE ULTIMATE/GREEN $349.00 CLEARANCE PRICE! $299.00 LG ULTIMATE WAL&RED $349.00 CLEARANCE PRICE! $299.00 LG ULTIMATE RED&WALNUT $349.00 CLEARANCE PRICE! $299.00