19mm poly tubing tank outlet/bulkhead fitting
thingiverse
Whilst building a dutch/bato bucket inspired hydroponics system I found all the off the shelf outlets were quite expensive and/or the wrong size for 19mm poly tubing I am using so I designed this very cheap to print 19mm barb with an optional screw on filter. Added a bit of thread tape during installation and no leaks so far. I would recommend using PETG if this is being used outdoors, I only used PLA as that's what I had on hand. Will be monitoring them for warping and replace as needed.
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