Water Supply Quarter Turn Valve Knob 3D printable model by CalgaryBen

Water Supply Quarter Turn Valve Knob

Source: Thingiverse by CalgaryBen

The Water Supply Quarter Turn Valve Knob is a free printable 3D model from Thingiverse by CalgaryBen. This is a replacement knob for the water shut-off valve that feeds my whole-house humidifier. You can download the STL file from the original listing below and print it at home.

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30 saves Source: Thingiverse Updated 2026-05-06

Tags: Water, Supply, Quarter, Turn, Valve, Knob

About this model

This is a replacement knob for the water shut-off valve that feeds my whole-house humidifier. The original (plated/painted plastic) one broke, and I couldn't find a replacement at my local hardware store. I'm not sure what brand of valve is in use (no markings aside from "WPCL" and "LF"=lead-free), but it's a quarter-turn valve that would typically feed cold water to a humidifier or fridge/freezer. The stem has 2 flat faces (so not a "D" stem, but I don't know what this shape is), with the circular diameter of 8.0mm and the distance between the flat parts about 6.0mm. I just got my first 3D printer (Creality Ender 3) a couple days ago, and still learning, but it turned out quite well. I'd recommend printing with handle/"wing" parts on the bed, and round parts facing up (as defined in the S…

Frequently asked questions

Is this 3D model free to download?
Yes. Water Supply Quarter Turn Valve Knob is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by CalgaryBen.
Who made this model?
Designed by CalgaryBen, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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