Tap Diffuser 15mm (old style push fit)
thingiverse
I designed this specifically for my low-cost 90s faucets, a push fit diffuser is what I needed. This one is made for a 15mm hole, it has a larger lip to prevent it from going too far in, measuring 16.8mm in diameter (which explains why your slicer will show a 16.8mm diameter instead of 15mm). Printing at 100% fill rate, two of these will take about 15 minutes. This is actually designed to stop the faucet from dripping down its own spout. I created it using Tinkercad, and it only took me 30 minutes - my first time ever using this software with no prior training, so I was pleasantly surprised at how quickly it went. It fits both of my faucets perfectly.
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