Summary Bought and installed a used sink, but the drain control lever cap was missing. (And the old one was, of course, different.) . The HW store does not sell the cap alone, so you're looking at a new $40 complete drain! Come on! If I had that kind o' cash to waste I wouldn't be installing a used sink! . The fit isn't 100% perfect on this part, but with the proper application of heat gun and violence it goes on well enough. . There is also a non-hole version if you want to remove the drain mechanism entirely.