Custom Tube adapter STL 3D file ⌀ 52–20 mm (Length: 36 mm) 📦#9423

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Straight tube coupler ⌀52 mm to ⌀20 mm in STL format. Length of this coupler is 36 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The two axes of the tubes are off-center by 2 mm. The ends are not rounded.
Generation date: 2026-06-12
3D Model Tube adapter STL 3D file ⌀ 52–20 mm (Length: 36 mm)

3D model download

Free
  • inline-tube-adapter-lenA12mm-d_model9423-nb0_dd{id}.stl : 6.2 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - commercial use allowed)
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Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Parameter Value
#1 side A length 12 mm (≃0.47 in)
#2 side A outer diameter 52 mm (≃2 1/16 in)
#3 side A thickness 3 mm (≃1/8 in)
#4 side B length 12 mm (≃0.47 in)
#5 side B outer diameter 20 mm (≃0.79 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 12 mm (≃0.47 in)
#8 axis offset 2 mm (≃0.08 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 46 mm (≃1 13/16 in)
inner diameter (side B) 16 mm (≃5/8 in)
total length 36 mm (≃1.42 in)
illustration of the parameters
Parameter overview

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 side A length lenA
#2 side A outer diameter diA
#3 side A thickness thA
#4 side B length lenB
#5 side B outer diameter diB
#6 side B thickness thB
#7 transition length tra
#8 axis offset ofs
#9 ends fillet fil

Related 3D models

To search for a model based on your own parameters, go to the template page Inline tube adapter 

Tubing adapter STL file ⌀ 51–20 mm (Length: 36 mm) (📦 #9424)

1 object(s) - format STL
Tubing adapter STL file ⌀ 51–20 mm (Length: 36 mm)
Straight tube reducer ⌀51 mm to ⌀20 mm in STL format. Final length of this sleeve is 36 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The axes of the tubes are offset by 2 mm. The ends are raw.
Parameter Value Unit
side A length 12 mm
side A outer diameter 51 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 51–21 mm (Length: 36 mm) (📦 #9416)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 51–21 mm (Length: 36 mm)
Tubing reducer ⌀51 mm to ⌀21 mm in STL format. Length of this coupler is 36 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The axes of the tubes are off-center by 2 mm. The ends have no fillet.
Parameter Value Unit
side A length 12 mm
side A outer diameter 51 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 50–22 mm (Length: 36 mm) (📦 #9413)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 50–22 mm (Length: 36 mm)
Straight tubing adapter ⌀50 mm to ⌀22 mm in STL format. Total length of this junction is 36 mm. The larger-diameter tube has a thickness of 3 mm and a length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 12 mm as well. The axes of the tubes are offset by 2 mm. The ends are raw.
Parameter Value Unit
side A length 12 mm
side A outer diameter 50 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 22 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 33–18 mm (Length: 50 mm) (📦 #1525)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 33–18 mm (Length: 50 mm)
Straight tube connector ⌀33 mm to ⌀18 mm in STL format. Length of this junction is 50 mm. The larger-diameter tube has a thickness of 2.9 mm and a length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.9 mm
side B length 20 mm
side B outer diameter 18 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 33–26 mm (Length: 50 mm) (📦 #1526)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 33–26 mm (Length: 50 mm)
Straight tube adapter ⌀33 mm to ⌀26 mm in STL 3D format. Final length of this fitting is 50 mm. The larger-diameter tube has a thickness of 2.8 mm and a sleeve length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.8 mm
side B length 20 mm
side B outer diameter 26 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 33–14 mm (Length: 40 mm) (📦 #4348)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 33–14 mm (Length: 40 mm)
Tubing reducer ⌀33 mm to ⌀14 mm in STL format. Length of this coupler is 40 mm. The larger-diameter tube has a thickness of 2.5 mm and a sleeve length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.5 mm
side B length 15 mm
side B outer diameter 14 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 43–35 mm (Length: 35 mm) (📦 #7073)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 43–35 mm (Length: 35 mm)
Straight tube adapter ⌀43 mm to ⌀35 mm in STL format. Length of this connector is 35 mm. The larger-diameter tube has a thickness of 2.8 mm and a length of 15 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 15 mm as well. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 43 mm
side A thickness 2.8 mm
side B length 15 mm
side B outer diameter 35 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 47–19 mm (Length: 36 mm) (📦 #9411)

1 object(s) - format STL
Tube adapter STL file ⌀ 47–19 mm (Length: 36 mm)
Tube junction ⌀47 mm to ⌀19 mm in STL 3D format. Length of this reducer is 36 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 12 mm, the smaller one of 12 mm as well. The two axes of the tubes are offset by 2 mm. The ends are not rounded.
Parameter Value Unit
side A length 12 mm
side A outer diameter 47 mm
side A thickness 2 mm
side B length 12 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 40–16 mm (Length: 36 mm) (📦 #9409)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 40–16 mm (Length: 36 mm)
Tube connector ⌀40 mm to ⌀16 mm in STL format. Length of this sleeve is 36 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 12 mm, the smaller one of 12 mm as well. The axes of the tubes are off-center by 2 mm. The ends are not rounded.
Parameter Value Unit
side A length 12 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 12 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 12 mm
axis offset 2 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 43 mm) (📦 #7837)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 43 mm)
Inline tube reducer ⌀50 mm to ⌀40 mm in STL 3D format. Final length of this fitting is 43 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 50 mm
side A thickness 2.5 mm
side B length 15 mm
side B outer diameter 40 mm
side B thickness 2.5 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 38–19 mm (Length: 35 mm) (📦 #3655)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 38–19 mm (Length: 35 mm)
Inline tube coupler ⌀38 mm to ⌀19 mm in STL 3D format. Final length of this adapter is 35 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 10 mm. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 38 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 40–39 mm (Length: 43 mm) (📦 #7838)

1 object(s) - format STL
Tubing adapter STL file ⌀ 40–39 mm (Length: 43 mm)
Tube junction ⌀40 mm to ⌀39 mm in STL 3D format. Total length of this sleeve is 43 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 40 mm
side A thickness 2.5 mm
side B length 15 mm
side B outer diameter 39 mm
side B thickness 2.5 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 38–27 mm (Length: 45 mm) (📦 #5269)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 38–27 mm (Length: 45 mm)
Tube coupler ⌀38 mm to ⌀27 mm in STL format. Final length of this fitting is 45 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 38 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 27 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 39–19 mm (Length: 60 mm) (📦 #9126)

1 object(s) - format STL
Tubing adapter STL file ⌀ 39–19 mm (Length: 60 mm)
Inline tubing adapter ⌀39 mm to ⌀19 mm in STL format. Total length of this junction is 60 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 25 mm as well. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 39 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 38–19 mm (Length: 60 mm) (📦 #9123)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 38–19 mm (Length: 60 mm)
Tube adapter ⌀38 mm to ⌀19 mm in STL format. Length of this sleeve is 60 mm. The larger-diameter tube has a thickness of 3 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 38 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 34–27 mm (Length: 45 mm) (📦 #5268)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 34–27 mm (Length: 45 mm)
Inline tube junction ⌀34 mm to ⌀27 mm in STL 3D format. Total length of this junction is 45 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 34 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 27 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 42–35 mm (Length: 27 mm) (📦 #7076)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 42–35 mm (Length: 27 mm)
Diameter adapter ⌀42 mm to ⌀35 mm in STL format. Total length of this junction is 27 mm. The larger-diameter tube has a thickness of 2.1 mm and a length of 12 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 10 mm. The ends have no fillet.
Parameter Value Unit
side A length 12 mm
side A outer diameter 42 mm
side A thickness 2.1 mm
side B length 10 mm
side B outer diameter 35 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 36–19 mm (Length: 60 mm) (📦 #9122)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 36–19 mm (Length: 60 mm)
Tubing adapter ⌀36 mm to ⌀19 mm in STL 3D format. Length of this sleeve is 60 mm. The larger-diameter tube has a thickness of 3 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 36 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 32–10 mm (Length: 30 mm) (📦 #4049)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 32–10 mm (Length: 30 mm)
Inline tubing adapter ⌀32 mm to ⌀10 mm in STL 3D format. Final length of this adapter is 30 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 10 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 39–30 mm (Length: 45 mm) (📦 #8785)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 39–30 mm (Length: 45 mm)
Tube junction ⌀39 mm to ⌀30 mm in STL format. Total length of this coupler is 45 mm. The larger-diameter tube has a thickness of 2.2 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 39 mm
side A thickness 2.2 mm
side B length 20 mm
side B outer diameter 30 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 48–35 mm (Length: 34 mm) (📦 #8774)

1 object(s) - format STL
Tube adapter STL file ⌀ 48–35 mm (Length: 34 mm)
Inline fitting ⌀48 mm to ⌀35 mm in STL 3D format. Final length of this coupler is 34 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 14 mm. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 48 mm
side A thickness 2 mm
side B length 14 mm
side B outer diameter 35 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 32–25 mm (Length: 25 mm) (📦 #1103)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL file ⌀ 32–25 mm (Length: 25 mm)
Straight tube reducer ⌀32 mm to ⌀25 mm in STL 3D format. Length of this junction is 25 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 10 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 10 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 30–26 mm (Length: 40 mm) (📦 #8439)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 30–26 mm (Length: 40 mm)
Inline tubing adapter ⌀30 mm to ⌀26 mm in STL 3D format. Final length of this fitting is 40 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 20 mm. The ends are raw.
Parameter Value Unit
side A length 10 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 26 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 53–40 mm (Length: 35 mm) (📦 #9270)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 53–40 mm (Length: 35 mm)
Tube adapter ⌀53 mm to ⌀40 mm in STL 3D format. Final length of this sleeve is 35 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 53 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 40 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 30–27 mm (Length: 40 mm) (📦 #8437)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 30–27 mm (Length: 40 mm)
Inline sleeve ⌀30 mm to ⌀27 mm in STL 3D format. Total length of this sleeve is 40 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 27 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–34 mm (Length: 45 mm) (📦 #8787)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–34 mm (Length: 45 mm)
Inline fitting ⌀39 mm to ⌀34 mm in STL 3D format. Total length of this connector is 45 mm. The larger-diameter tube has a thickness of 2.2 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 39 mm
side A thickness 2.2 mm
side B length 20 mm
side B outer diameter 34 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet