S-SERIES. Low profile RV air conditioner has R32, a more eco-friendly refrigerant. Features include corrosion-resistant coatings, heavy-duty motor support brackets, reinforced screw holes and extensive vibration control testing High-performance motor with sound dampening rubber-grommets reduce noise and vibration throughout the coachAerodynamic appearance. High grade, ultra-resistant UV coating and automotive grade polymer shroud with a glossy, attractive appearance for years to come."EZ Install" control box with flip-down design allows the wiring connections to be made easily avoiding potential installation errorsUniversal control box and thermostat. Upgrade from cool only AC to heat pump without the expense of changing the control box and thermostatDual Fan Design provides ultra quiet operationLow Profile Shroud. 3" additional clearance in roof heightDimensions: 11" H x 30" W x 40"L