In addition to what is standard, E-Pro models include Package A, CO2 detector and a water purifier. Classic trailer models include Package B, CO2 detector, water purifier and ventilation fan. Classic fifth wheel models include Package A, CO2 detector, water purifier and ventilation fan. Super Lite fifth wheel models include Package E, CO2 detector, water purifier and ventilation fan. Super Lite travel trailer models include Package F, CO2 detector, water purifier and ventilation fan. Micro Lite models include Package D, CO2 detector, heated mattress, water purifier and ventilation fan. Shamrock models include Package G, CO2 detector, water purifier and ventilation fan.