May 28, 2026
Description
This model is a G3/4 inch washing machine drain adapter designed for under-sink (washbasin) installations.
It allows a washing machine drain hose to be safely connected to a standard G3/4 threaded outlet.
The design consists of multiple parts that can be separated in the slicer using “Split to Objects”, allowing each component to be printed individually.
A TPU sealing ring ensures a tight and leak-free connection to the threaded fitting.
Print all parts (adapter body and sealing ring separately).
Insert the TPU sealing ring into the groove inside the G3/4 thread.
Screw the adapter onto the G3/4 outlet by hand.
Push the washing machine drain hose onto the hose barb.
Secure the hose using a hose clamp for reliable operation.
Important: Always use a hose clamp to prevent the hose from slipping off under pressure.
Material (adapter): PETG (recommended)
Material (seal): TPU
Layer height: 0.2 mm
Wall/perimeters: 3–4
Infill: 20–30%
Print orientation: Thread facing upward for best accuracy
Supports: Not required
PETG is strongly recommended due to moisture resistance and improved durability compared to PLA.
Two fit variants are included: Tight Fit and Loose Fit
Designed specifically for washing machine wastewater, not for pressurized water lines
Hand-tightening is sufficient; do not overtighten
This adapter is a practical and compact solution for clean and reliable washing machine drainage under a sink.
License:
Creative Commons — Attribution — Noncommercial — Share Alike
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