We developed this Heavy Duty condensation drip tray for humid climates where the Hd or MES system may encounter excessive movement. The HD or MES units sit in the tray and is held in place by the HD or MES unit. The unit is entirely .060 304 TIG Welded stainless steel and has 4 drain tubes to remove condensation water at all corners so no matter the angle of the vehicle or water craft it will drain. When using this tray it is not necessary to use the evaporators drain tubes, they can drain into this tray. Proudly made by us in the USA!