The RAVDP18, is a drain pan that is required on all 18000 BTU large chassis units. It is only for use on 18000 BTU units with a chassis height of 47". The kit includes the drain pan with mounting holes and a 3/4" drain plug.
Installation also requires silicone caulk, mounting screws, pipe sealant or teflon tape and condensate drain pipe.elbows. These materials need to be field supplied.