Custom Tube adapter STL file ⌀ 35–19 mm (Length: 80 mm) 📦#2139

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Inline tube reducer ⌀35 mm to ⌀19 mm in STL format. Length of this sleeve is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends have a fillet to ease the connection.
Generation date: 2025-10-01
3D Model Tube adapter STL file ⌀ 35–19 mm (Length: 80 mm)

3D model download

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  • inline-tube-adapter-lenA25mm-d_model2139-nb0_dd{id}.stl : 7.3 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 25 mm (≃0.98 in)
#2 side A outer diameter 35 mm (≃1 3/8 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 25 mm (≃0.98 in)
#5 side B outer diameter 19 mm (≃3/4 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 30 mm (≃1 3/16 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet fillet on both inside
and outside
Metadata Value
inner diameter (side A) 31 mm (≃1.22 in)
inner diameter (side B) 15 mm (≃0.59 in)
total length 80 mm (≃3.15 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 

Tube adapter STL 3D file ⌀ 35–20 mm (Length: 80 mm) (📦 #2137)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–20 mm (Length: 80 mm)
Straight tube connector ⌀35 mm to ⌀20 mm in STL format. Final length of this reducer is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends feature a fillet to make tube connection easier.
Parameter Value Unit
side A length 25 mm
side A outer diameter 35 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–23 mm (Length: 80 mm) (📦 #2124)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–23 mm (Length: 80 mm)
Tube reducer ⌀35 mm to ⌀23 mm in STL format. Final length of this coupler is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends have a fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 35 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 30–17 mm (Length: 90 mm) (📦 #2119)

1 object(s) - format STL
Tube adapter STL file ⌀ 30–17 mm (Length: 90 mm)
Inline tube coupler ⌀30 mm to ⌀17 mm in STL format. Length of this junction is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 17 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 50–25 mm (Length: 90 mm) (📦 #7361)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 50–25 mm (Length: 90 mm)
Tube junction ⌀50 mm to ⌀25 mm in STL format. Final length of this adapter is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 60–20 mm (Length: 75 mm) (📦 #2411)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–20 mm (Length: 75 mm)
Inline tube junction ⌀60 mm to ⌀20 mm in STL format. Total length of this connector is 75 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The ends feature a fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 60 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 46–39 mm (Length: 80 mm) (📦 #4835)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 46–39 mm (Length: 80 mm)
Inline tube coupler ⌀46 mm to ⌀39 mm in STL 3D format. Total length of this fitting is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 46 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 39 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 54–44 mm (Length: 80 mm) (📦 #4484)

1 object(s) - format STL
Tube adapter STL file ⌀ 54–44 mm (Length: 80 mm)
Inline sleeve ⌀54 mm to ⌀44 mm in STL format. Length of this sleeve is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 54 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 44 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 40–16 mm (Length: 110 mm) (📦 #3485)

1 object(s) - format STL
Tubing adapter STL file ⌀ 40–16 mm (Length: 110 mm)
Straight tube coupler ⌀40 mm to ⌀16 mm in STL 3D format. Total length of this sleeve is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 30 mm. The ends feature a fillet to ease the connection.
Parameter Value Unit
side A length 50 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 30–17 mm (Length: 55 mm) (📦 #9056)

1 object(s) - format STL
Tubing adapter STL file ⌀ 30–17 mm (Length: 55 mm)
Inline tubing adapter ⌀30 mm to ⌀17 mm in STL format. Length of this junction is 55 mm. The larger-diameter tube has a thickness of 2 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 20 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 39–35 mm (Length: 60 mm) (📦 #4018)

1 object(s) - format STL
Tube adapter STL file ⌀ 39–35 mm (Length: 60 mm)
Straight tubing adapter ⌀39 mm to ⌀35 mm in STL format. Total length of this reducer is 60 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 39 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 50–40 mm (Length: 50 mm) (📦 #1124)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–40 mm (Length: 50 mm)
Tube junction ⌀50 mm to ⌀40 mm in STL 3D format. Length of this coupler is 50 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 44–42 mm (Length: 70 mm) (📦 #7604)

1 object(s) - format STL
Tube adapter STL file ⌀ 44–42 mm (Length: 70 mm)
Straight tube reducer ⌀44 mm to ⌀42 mm in STL format. Total length of this reducer is 70 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends are rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 42 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 10–8 mm (Length: 40 mm) (📦 #7337)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 10–8 mm (Length: 40 mm)
Inline tube coupler ⌀10 mm to ⌀8 mm in STL 3D format. Final length of this coupler 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 10 mm as well. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 10 mm
side A outer diameter 10 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 8 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 46–43 mm (Length: 70 mm) (📦 #4857)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 46–43 mm (Length: 70 mm)
Diameter adapter ⌀46 mm to ⌀43 mm in STL 3D format. Length of this adapter is 70 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 46 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 43 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–29 mm (Length: 55 mm) (📦 #2197)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–29 mm (Length: 55 mm)
Inline tube reducer ⌀35 mm to ⌀29 mm in STL 3D format. Final length of this junction is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 29 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 32–15 mm (Length: 60 mm) (📦 #2442)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 32–15 mm (Length: 60 mm)
Tube coupler ⌀32 mm to ⌀15 mm in STL format. Length of this junction is 60 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends feature an internal fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 50–40 mm (Length: 100 mm) (📦 #1125)

1 object(s) - format STL (4.0/5) 1 vote(s)
Tube adapter STL file ⌀ 50–40 mm (Length: 100 mm)
Straight tube fitting ⌀50 mm to ⌀40 mm in STL format. Length of this reducer is 100 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 40 mm, the smaller one of 40 mm as well. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 40 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 51–35 mm (Length: 80 mm) (📦 #1290)

1 object(s) - format STL
Tube adapter STL file ⌀ 51–35 mm (Length: 80 mm)
Tube reducer ⌀51 mm to ⌀35 mm in STL 3D format. Length of this adapter is 80 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 51 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–30 mm (Length: 55 mm) (📦 #2189)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–30 mm (Length: 55 mm)
Inline tube junction ⌀35 mm to ⌀30 mm in STL format. Total length of this adapter is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to make tube connection easier.
Parameter Value Unit
side A length 20 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 25–9 mm (Length: 50 mm) (📦 #4916)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 25–9 mm (Length: 50 mm)
Straight tubing adapter ⌀25 mm to ⌀9 mm in STL 3D format. Length of this sleeve is 50 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm as well. The ends feature a fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 25 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 21–9 mm (Length: 55 mm) (📦 #4917)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 21–9 mm (Length: 55 mm)
Tube fitting ⌀21 mm to ⌀9 mm in STL format. Final length of this coupler is 55 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 20 mm. The ends are rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 21 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 20–9 mm (Length: 55 mm) (📦 #5176)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 20–9 mm (Length: 55 mm)
Tube connector ⌀20 mm to ⌀9 mm in STL format. Total length of this sleeve is 55 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 20 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 25 mm
side A outer diameter 20 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 19–8 mm (Length: 55 mm) (📦 #5174)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 19–8 mm (Length: 55 mm)
Straight sleeve ⌀19 mm to ⌀8 mm in STL format. Length of this adapter is 55 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 20 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 19 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 8 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 32–15 mm (Length: 60 mm) (📦 #4368)

1 object(s) - format STL
Tube adapter STL file ⌀ 32–15 mm (Length: 60 mm)
Straight tube fitting ⌀32 mm to ⌀15 mm in STL 3D format. Length of this connector is 60 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 25 mm. The ends feature an internal fillet to make tube connection easier.
Parameter Value Unit
side A length 15 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 56–35 mm (Length: 80 mm) (📦 #6630)

1 object(s) - format STL
Tube adapter STL file ⌀ 56–35 mm (Length: 80 mm)
Tubing adapter ⌀56 mm to ⌀35 mm in STL format. Length of this junction is 80 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 56 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...