Bulkhead fitting for a 1/2" poly hose

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Summary Connect a 1/2" poly hose to a tank with this attachment. Instructions You'll need a garden hose washer to prevent leaks. Print it with a solid infill, or the bottom may break off when tightening the nut. Update - I upgraded the design (v05) with thicker walls around the washer, a smaller hole, and a smaller nut for reduced pressure on threads. The new version still fits regular hose washers but requires some force to install. It's stronger now, but only hand tighten it snugly, avoiding excessive force.