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Custom Tube adapter STL file ⌀ 27–21 mm (Length: 395 mm) 📦#3675

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Straight tube coupler ⌀27 mm to ⌀21 mm in STL 3D format. Total length of this sleeve is 395 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 60 mm, the smaller one of 300 mm. The ends have no fillet.
Generation date: 2025-11-25
3D Model Tube adapter STL file ⌀ 27–21 mm (Length: 395 mm)

3D model download

Free
  • inline-tube-adapter-lenA60mm-d_model3675-nb0_dd{id}.stl : 590.7 Ko
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - commercial use allowed)
Safe download

Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Parameter Value
#1 side A length 60 mm (≃2 3/8 in)
#2 side A outer diameter 27 mm (≃1 1/16 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 300 mm (≃11 13/16 in)
#5 side B outer diameter 21 mm (≃13/16 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 35 mm (≃1 3/8 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 23 mm (≃0.91 in)
inner diameter (side B) 17 mm (≃0.67 in)
total length 395 mm (≃15 9/16 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

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

Tube adapter STL 3D file ⌀ 50–39 mm (Length: 390 mm) (📦 #1461)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 50–39 mm (Length: 390 mm)
Tube connector ⌀50 mm to ⌀39 mm in STL 3D format. Total length of this fitting is 390 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 300 mm. The two axes of the tubes are off-center by 5 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 60 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 300 mm
side B outer diameter 39 mm
side B thickness 2 mm
transition length 30 mm
axis offset 5 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 33–10 mm (Length: 260 mm) (📦 #1524)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 33–10 mm (Length: 260 mm)
Inline fitting ⌀33 mm to ⌀10 mm in STL format. Final length of this reducer is 260 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 230 mm. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.9 mm
side B length 230 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 33–10 mm (Length: 250 mm) (📦 #1523)

1 object(s) - format STL
Tube adapter STL file ⌀ 33–10 mm (Length: 250 mm)
Tube junction ⌀33 mm to ⌀10 mm in STL 3D format. Final length of this fitting is 250 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 230 mm. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 33 mm
side A thickness 2.9 mm
side B length 230 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 150–90 mm (Length: 200 mm) (📦 #1372)

1 object(s) - format STL
Tube adapter STL file ⌀ 150–90 mm (Length: 200 mm)
Straight tube connector ⌀150 mm to ⌀90 mm in STL format. Final length of this junction is 200 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 100 mm. The ends feature an external fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 50 mm
side A outer diameter 150 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 90 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 149–100 mm (Length: 200 mm) (📦 #1288)

1 object(s) - format STL (5.0/5) 2 vote(s)
Tube adapter STL 3D file ⌀ 149–100 mm (Length: 200 mm)
Diameter adapter ⌀149 mm to ⌀100 mm in STL format. Final length of this fitting is 200 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 100 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 50 mm
side A outer diameter 149 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 100 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 50–49 mm (Length: 200 mm) (📦 #2325)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–49 mm (Length: 200 mm)
Inline tube adapter ⌀50 mm to ⌀49 mm in STL 3D format. Length of this fitting is 200 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 100 mm, the smaller one of 90 mm. The ends have a fillet on the inside.
Parameter Value Unit
side A length 100 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 90 mm
side B outer diameter 49 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 60–35 mm (Length: 240 mm) (📦 #2996)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–35 mm (Length: 240 mm)
Straight tube fitting ⌀60 mm to ⌀35 mm in STL 3D format. Length of this adapter is 240 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 80 mm, the smaller one of 80 mm as well. The ends are raw.
Parameter Value Unit
side A length 80 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 80 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 80 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 27–23 mm (Length: 192 mm) (📦 #3896)

1 object(s) - format STL
Tube adapter STL file ⌀ 27–23 mm (Length: 192 mm)
Tube junction ⌀27 mm to ⌀23 mm in STL format. Length of this fitting is 192 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 61 mm, the smaller one of 71 mm. The ends are raw.
Parameter Value Unit
side A length 61 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 25–21 mm (Length: 148 mm) (📦 #3662)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 25–21 mm (Length: 148 mm)
Tube junction ⌀25 mm to ⌀21 mm in STL format. Total length of this junction is 148 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 72 mm, the smaller one of 71 mm. The ends have no fillet.
Parameter Value Unit
side A length 72 mm
side A outer diameter 25 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 27–21 mm (Length: 137 mm) (📦 #3671)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 27–21 mm (Length: 137 mm)
Straight tube adapter ⌀27 mm to ⌀21 mm in STL 3D format. Length of this fitting is 137 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 31 mm, the smaller one of 71 mm. The ends have no fillet.
Parameter Value Unit
side A length 31 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 35 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 25–21 mm (Length: 137 mm) (📦 #3668)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 25–21 mm (Length: 137 mm)
Diameter adapter ⌀25 mm to ⌀21 mm in STL 3D format. Total length of this adapter is 137 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 31 mm, the smaller one of 71 mm. The ends have no fillet.
Parameter Value Unit
side A length 31 mm
side A outer diameter 25 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 35 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 110–90 mm (Length: 215 mm) (📦 #1478)

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Tube adapter STL 3D file ⌀ 110–90 mm (Length: 215 mm)
Tube coupler ⌀110 mm to ⌀90 mm in STL 3D format. Length of this connector is 215 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 100 mm, the smaller one of 100 mm as well. The ends are rounded on the outside.
Parameter Value Unit
side A length 100 mm
side A outer diameter 110 mm
side A thickness 5 mm
side B length 100 mm
side B outer diameter 90 mm
side B thickness 5 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 102–60 mm (Length: 253 mm) (📦 #2774)

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Tubing adapter STL 3D file ⌀ 102–60 mm (Length: 253 mm)
Straight tubing adapter ⌀102 mm to ⌀60 mm in STL format. Length of this reducer is 253 mm. The thickness of the tubes is identical: 4.5 mm. The larger-diameter tube has a length of 89 mm, the smaller one of 88 mm. The ends are raw.
Parameter Value Unit
side A length 89 mm
side A outer diameter 102 mm
side A thickness 4.5 mm
side B length 88 mm
side B outer diameter 60 mm
side B thickness 4.5 mm
transition length 76 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 27–23 mm (Length: 162 mm) (📦 #3739)

1 object(s) - format STL
Tube adapter STL file ⌀ 27–23 mm (Length: 162 mm)
Inline tube junction ⌀27 mm to ⌀23 mm in STL format. Length of this junction is 162 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 31 mm, the smaller one of 71 mm. The ends have no fillet.
Parameter Value Unit
side A length 31 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 104–90 mm (Length: 219 mm) (📦 #1765)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 104–90 mm (Length: 219 mm)
Inline tube reducer ⌀104 mm to ⌀90 mm in STL format. Total length of this connector is 219 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 100 mm, the smaller one of 89 mm. The ends feature an external fillet to make tube connection easier.
Parameter Value Unit
side A length 100 mm
side A outer diameter 104 mm
side A thickness 4 mm
side B length 89 mm
side B outer diameter 90 mm
side B thickness 4 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 110–100 mm (Length: 225 mm) (📦 #1479)

1 object(s) - format STL
Tube adapter STL file ⌀ 110–100 mm (Length: 225 mm)
Inline tube coupler ⌀110 mm to ⌀100 mm in STL 3D format. Final length of this fitting is 225 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 110 mm, the smaller one of 100 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 110 mm
side A outer diameter 110 mm
side A thickness 5 mm
side B length 100 mm
side B outer diameter 100 mm
side B thickness 5 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 110–40 mm (Length: 215 mm) (📦 #1693)

1 object(s) - format STL
Tube adapter STL file ⌀ 110–40 mm (Length: 215 mm)
Straight tube coupler ⌀110 mm to ⌀40 mm in STL 3D format. Final length of this connector is 215 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 100 mm, the smaller one of 100 mm as well. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 100 mm
side A outer diameter 110 mm
side A thickness 5 mm
side B length 100 mm
side B outer diameter 40 mm
side B thickness 5 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 68–39 mm (Length: 130 mm) (📦 #3348)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 68–39 mm (Length: 130 mm)
Inline tubing adapter ⌀68 mm to ⌀39 mm in STL 3D format. Final length of this reducer is 130 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 35 mm, the smaller one of 70 mm. The ends are rounded on the inside to ease the connection.
Parameter Value Unit
side A length 35 mm
side A outer diameter 68 mm
side A thickness 2 mm
side B length 70 mm
side B outer diameter 39 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 100–71 mm (Length: 190 mm) (📦 #3070)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 100–71 mm (Length: 190 mm)
Tubing reducer ⌀100 mm to ⌀71 mm in STL format. Final length of this fitting is 190 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 70 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 100 mm
side A thickness 3 mm
side B length 70 mm
side B outer diameter 71 mm
side B thickness 3 mm
transition length 70 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 150–50 mm (Length: 260 mm) (📦 #2815)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 150–50 mm (Length: 260 mm)
Inline tube junction ⌀150 mm to ⌀50 mm in STL format. Final length of this reducer is 260 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 80 mm, the smaller one of 80 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 80 mm
side A outer diameter 150 mm
side A thickness 3 mm
side B length 80 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 100 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 64–32 mm (Length: 166 mm) (📦 #2979)

1 object(s) - format STL
Tube adapter STL file ⌀ 64–32 mm (Length: 166 mm)
Inline tubing adapter ⌀64 mm to ⌀32 mm in STL 3D format. Total length of this junction is 166 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 80 mm, the smaller one of 60 mm. The ends are raw.
Parameter Value Unit
side A length 80 mm
side A outer diameter 64 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 26 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 111–90 mm (Length: 170 mm) (📦 #1550)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 111–90 mm (Length: 170 mm)
Tube connector ⌀111 mm to ⌀90 mm in STL format. Final length of this adapter is 170 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 70 mm, the smaller one of 80 mm. The ends have a fillet on the outside to ease the connection.
Parameter Value Unit
side A length 70 mm
side A outer diameter 111 mm
side A thickness 5 mm
side B length 80 mm
side B outer diameter 90 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 152–98 mm (Length: 190 mm) (📦 #2376)

1 object(s) - format STL
Tube adapter STL file ⌀ 152–98 mm (Length: 190 mm)
Inline sleeve ⌀152 mm to ⌀98 mm in STL 3D format. Total length of this fitting is 190 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 100 mm. The ends have a fillet to make tube connection easier.
Parameter Value Unit
side A length 60 mm
side A outer diameter 152 mm
side A thickness 5 mm
side B length 100 mm
side B outer diameter 98 mm
side B thickness 5 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 110–100 mm (Length: 125 mm) (📦 #1803)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 110–100 mm (Length: 125 mm)
Straight tube connector ⌀110 mm to ⌀100 mm in STL format. Total length of this coupler is 125 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 70 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 110 mm
side A thickness 3 mm
side B length 70 mm
side B outer diameter 100 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 104–90 mm (Length: 180 mm) (📦 #1766)

1 object(s) - format STL
Tube adapter STL file ⌀ 104–90 mm (Length: 180 mm)
Straight tube connector ⌀104 mm to ⌀90 mm in STL format. Length of this reducer is 180 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 80 mm, the smaller one of 70 mm. The ends have no fillet.
Parameter Value Unit
side A length 80 mm
side A outer diameter 104 mm
side A thickness 4 mm
side B length 70 mm
side B outer diameter 90 mm
side B thickness 4 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 80–75 mm (Length: 160 mm) (📦 #3132)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 80–75 mm (Length: 160 mm)
Straight tube connector ⌀80 mm to ⌀75 mm in STL 3D format. Total length of this adapter is 160 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 70 mm, the smaller one of 60 mm. The ends have no fillet.
Parameter Value Unit
side A length 70 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 75 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 86–75 mm (Length: 160 mm) (📦 #3133)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 86–75 mm (Length: 160 mm)
Straight tubing adapter ⌀86 mm to ⌀75 mm in STL format. Final length of this junction is 160 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 70 mm, the smaller one of 60 mm. The ends have no fillet.
Parameter Value Unit
side A length 70 mm
side A outer diameter 86 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 75 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 111–100 mm (Length: 180 mm) (📦 #1551)

1 object(s) - format STL
Tube adapter STL file ⌀ 111–100 mm (Length: 180 mm)
Inline tube reducer ⌀111 mm to ⌀100 mm in STL format. Length of this connector is 180 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 80 mm, the smaller one of 80 mm as well. The ends feature an external fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 80 mm
side A outer diameter 111 mm
side A thickness 5 mm
side B length 80 mm
side B outer diameter 100 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 108–93 mm (Length: 190 mm) (📦 #3255)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 108–93 mm (Length: 190 mm)
Tube fitting ⌀108 mm to ⌀93 mm in STL format. Length of this sleeve is 190 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 100 mm, the smaller one of 75 mm. The two axes of the tubes are offset by 7.4 mm. The ends have no fillet.
Parameter Value Unit
side A length 100 mm
side A outer diameter 108 mm
side A thickness 4 mm
side B length 75 mm
side B outer diameter 93 mm
side B thickness 4 mm
transition length 15 mm
axis offset 7.4 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 150–50 mm (Length: 350 mm) (📦 #2816)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 150–50 mm (Length: 350 mm)
Tubing adapter ⌀150 mm to ⌀50 mm in STL format. Total length of this sleeve is 350 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 150 mm, the smaller one of 100 mm. The ends are not rounded.
Parameter Value Unit
side A length 150 mm
side A outer diameter 150 mm
side A thickness 3 mm
side B length 100 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 100 mm
axis offset 0 mm
ends fillet no fillet