Overview for Mitsubishi PLP-40BAUThe Mr. Slim series from Mitsubishi Electric heating and cooling systems are a convenient, single or multi room solution for homes or offices that formerly relied on electric baseboard heaters in the winter and window air conditioning units in the summer. The Mitsubishi PLP-40BAU Ceiling Cassette Grill for Mitsubishi PLA-BA Mini Splits is intended for installation on Mitsubishi Ceiling Cassette Ductless products only.Mitsubishi Electric Cooling & Heating is a division of Mitsubishi Electric & Electronics USA, Inc. The Cooling & Heating division provides technical support and training to contractors, engineers, architects and distributors on its award-winning line of variable refrigerant flow (VRF) zoning and split-zoning cooling and heating systems for both commercial and residential installations. The latest innovations in comfort technology and energy efficient HVAC products are provided by Mitsubishi Electric Cooling & Heating. Ductless heating and cooling systems have been around for over 30 years and are used widely throughout the world.