Sink Drain pop up drain cap

thingiverse

You'll want to install a pipe end cap to seal off the hole in your sink drain that typically serves as a mounting point for a pop-up drain stopper handle. This plumbing component is specifically designed for use underneath a standard bathroom sink, but it's worth noting that blocking up this hole can be a bit of an inconvenience - after all, who wants to disable their pop-up drain plug? If you're determined to seal off the hole, however, this pipe end cap should do the trick. It's recommended to print this part with a 100% infill setting for optimal results. I used medium-quality settings on my Mono Price Mini Select 3D printer and managed to produce a functional piece that works perfectly with my sink drain. Keep in mind that the sizing may not be universal, so your mileage may vary.