Does the metal pop up drain come with this. Also, does it come with the matching over flow opening cap?A. The Delta T2794 is a Roman Tub filler so it doesn't come with any drain. The Bath tub that you are installing this with will depict what type or size drain you need.
Is the lever/knob on the back just for decoration or is it functional?A. The Delta T2794 lever is non functional on this model. If you wanted a functional lever would be the T4794.