Custom Tube adapter STL 3D file ⌀ 131–81 mm (Length: 90 mm) 📦#7473

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Inline tube junction ⌀131 mm to ⌀81 mm in STL format. Final length of this fitting is 90 mm. The thickness of the tubes is identical: 3.0 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends feature an external fillet to ease the connection.
Generation date: 2026-02-26
3D Model Tube adapter STL 3D file ⌀ 131–81 mm (Length: 90 mm)

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  • inline-tube-adapter-lenA30mm-d_model7473-nb0_dd{id}.stl : 6.5 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 30 mm (≃1 3/16 in)
#2 side A outer diameter 131 mm (≃5.16 in)
#3 side A thickness 3.0 mm (≃1/8 in)
#4 side B length 30 mm (≃1 3/16 in)
#5 side B outer diameter 81 mm (≃3 3/16 in)
#6 side B thickness 3 mm (≃1/8 in)
#7 transition length 30 mm (≃1 3/16 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet fillet on the outside
Metadata Value
inner diameter (side A) 125 mm (≃4.92 in)
inner diameter (side B) 75 mm (≃2 15/16 in)
total length 90 mm (≃3.54 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 3D file ⌀ 128–81 mm (Length: 80 mm) (📦 #7471)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 128–81 mm (Length: 80 mm)
Tubing adapter ⌀128 mm to ⌀81 mm in STL 3D format. Final 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 25 mm, the smaller one of 25 mm as well. The ends feature an external fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 128 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 81 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 153–80 mm (Length: 90 mm) (📦 #7469)

1 object(s) - format STL
Tube adapter STL file ⌀ 153–80 mm (Length: 90 mm)
Inline tube reducer ⌀153 mm to ⌀80 mm in STL format. Final length of this reducer is 90 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are rounded on the outside.
Parameter Value Unit
side A length 25 mm
side A outer diameter 153 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL file ⌀ 148–98 mm (Length: 100 mm) (📦 #3537)

1 object(s) - format STL
Tubing adapter STL file ⌀ 148–98 mm (Length: 100 mm)
Straight tube coupler ⌀148 mm to ⌀98 mm in STL format. Total length of this connector is 100 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends are rounded on the outside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 148 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 98 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 120–90 mm (Length: 75 mm) (📦 #1164)

1 object(s) - format STL
Tube adapter STL file ⌀ 120–90 mm (Length: 75 mm)
Inline tube junction ⌀120 mm to ⌀90 mm in STL 3D format. Total length of this fitting is 75 mm. The larger-diameter tube has a thickness of 4 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 30 mm. The ends have a fillet on the outside to make tube connection easier.
Parameter Value Unit
side A length 25 mm
side A outer diameter 120 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 90 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 154–80 mm (Length: 90 mm) (📦 #7468)

1 object(s) - format STL
Tube adapter STL file ⌀ 154–80 mm (Length: 90 mm)
Inline tube adapter ⌀154 mm to ⌀80 mm in STL 3D format. Total length of this fitting is 90 mm. The larger-diameter tube has a thickness of 3.9 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 30 mm as well. The ends are rounded on the outside to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 154 mm
side A thickness 3.9 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 120–80 mm (Length: 90 mm) (📦 #5519)

1 object(s) - format STL
Tube adapter STL file ⌀ 120–80 mm (Length: 90 mm)
Tube adapter ⌀120 mm to ⌀80 mm in STL 3D format. Final length of this connector is 90 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 are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 120 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 115–65 mm (Length: 100 mm) (📦 #3424)

1 object(s) - format STL
Tubing adapter STL file ⌀ 115–65 mm (Length: 100 mm)
Inline tubing adapter ⌀115 mm to ⌀65 mm in STL format. Length of this fitting is 100 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 40 mm. The ends are rounded on the outside.
Parameter Value Unit
side A length 30 mm
side A outer diameter 115 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 65 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 137–80 mm (Length: 75 mm) (📦 #9197)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 137–80 mm (Length: 75 mm)
Inline tubing adapter ⌀137 mm to ⌀80 mm in STL format. Final length of this fitting is 75 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 20 mm. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 137 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 110–75 mm (Length: 90 mm) (📦 #6670)

1 object(s) - format STL
Tubing adapter STL file ⌀ 110–75 mm (Length: 90 mm)
Inline tube reducer ⌀110 mm to ⌀75 mm in STL 3D format. Length of this junction is 90 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 are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 110 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 75 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 123–92 mm (Length: 75 mm) (📦 #7395)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 123–92 mm (Length: 75 mm)
Inline fitting ⌀123 mm to ⌀92 mm in STL format. Length of this fitting is 75 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 123 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 92 mm
side B thickness 3 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 115–62 mm (Length: 100 mm) (📦 #3425)

1 object(s) - format STL
Tubing adapter STL file ⌀ 115–62 mm (Length: 100 mm)
Straight tube fitting ⌀115 mm to ⌀62 mm in STL format. Length of this fitting is 100 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 40 mm. The ends are rounded on the outside to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 115 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 62 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 106–70 mm (Length: 90 mm) (📦 #2795)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 106–70 mm (Length: 90 mm)
Straight tube coupler ⌀106 mm to ⌀70 mm in STL 3D format. Total length of this sleeve is 90 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 106 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 70 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 160–80 mm (Length: 90 mm) (📦 #9715)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 160–80 mm (Length: 90 mm)
Straight tube coupler ⌀160 mm to ⌀80 mm in STL 3D format. Length of this reducer is 90 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 are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 160 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 116–100 mm (Length: 90 mm) (📦 #2153)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 116–100 mm (Length: 90 mm)
Straight tube fitting ⌀116 mm to ⌀100 mm in STL format. Final length of this reducer is 90 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 are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 116 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 100 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 123–92 mm (Length: 70 mm) (📦 #7012)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 123–92 mm (Length: 70 mm)
Tube fitting ⌀123 mm to ⌀92 mm in STL 3D format. Length of this connector is 70 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 123 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 92 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 123–93 mm (Length: 70 mm) (📦 #7013)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 123–93 mm (Length: 70 mm)
Straight tube reducer ⌀123 mm to ⌀93 mm in STL format. Total length of this connector is 70 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 123 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 93 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 100–66 mm (Length: 95 mm) (📦 #2876)

1 object(s) - format STL
Tube adapter STL file ⌀ 100–66 mm (Length: 95 mm)
Tube fitting ⌀100 mm to ⌀66 mm in STL format. Final length of this adapter is 95 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 35 mm, the smaller one of 35 mm as well. The ends have a fillet on the outside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 35 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 66 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 117–93 mm (Length: 70 mm) (📦 #7091)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 117–93 mm (Length: 70 mm)
Inline tube junction ⌀117 mm to ⌀93 mm in STL format. Length of this junction is 70 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 117 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 93 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 113–98 mm (Length: 75 mm) (📦 #7394)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 113–98 mm (Length: 75 mm)
Tube adapter ⌀113 mm to ⌀98 mm in STL format. Length of this reducer is 75 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 113 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 98 mm
side B thickness 3 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 110–80 mm (Length: 63 mm) (📦 #2394)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 110–80 mm (Length: 63 mm)
Straight tube reducer ⌀110 mm to ⌀80 mm in STL format. Final length of this connector is 63 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends feature an external fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 110 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL 3D file ⌀ 96–66 mm (Length: 95 mm) (📦 #2875)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 96–66 mm (Length: 95 mm)
Straight sleeve ⌀96 mm to ⌀66 mm in STL 3D format. Total length of this adapter is 95 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 35 mm, the smaller one of 35 mm as well. The ends feature an external fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 35 mm
side A outer diameter 96 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 66 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 94–90 mm (Length: 80 mm) (📦 #1391)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 94–90 mm (Length: 80 mm)
Straight tube fitting ⌀94 mm to ⌀90 mm in STL 3D format. Length of this adapter 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 feature an external fillet to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 94 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 90 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL file ⌀ 126–85 mm (Length: 71 mm) (📦 #5546)

1 object(s) - format STL
Tubing adapter STL file ⌀ 126–85 mm (Length: 71 mm)
Straight tube reducer ⌀126 mm to ⌀85 mm in STL format. Final length of this fitting is 71 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 27 mm, the smaller one of 31 mm. The ends are not rounded.
Parameter Value Unit
side A length 27 mm
side A outer diameter 126 mm
side A thickness 3 mm
side B length 31 mm
side B outer diameter 85 mm
side B thickness 3 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 106–80 mm (Length: 70 mm) (📦 #6095)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 106–80 mm (Length: 70 mm)
Tube adapter ⌀106 mm to ⌀80 mm in STL 3D format. Length of this fitting is 70 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 have a fillet on the inside to ease the connection.
Parameter Value Unit
side A length 20 mm
side A outer diameter 106 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL file ⌀ 97–70 mm (Length: 90 mm) (📦 #2797)

1 object(s) - format STL
Tubing adapter STL file ⌀ 97–70 mm (Length: 90 mm)
Tubing adapter ⌀97 mm to ⌀70 mm in STL 3D format. Total length of this coupler is 90 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 are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 97 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 70 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 110–80 mm (Length: 58 mm) (📦 #2395)

1 object(s) - format STL
Tube adapter STL file ⌀ 110–80 mm (Length: 58 mm)
Straight tube coupler ⌀110 mm to ⌀80 mm in STL format. Total length of this reducer is 58 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 25 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 20 mm
side A outer diameter 110 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 126–91 mm (Length: 71 mm) (📦 #5568)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 126–91 mm (Length: 71 mm)
Diameter adapter ⌀126 mm to ⌀91 mm in STL 3D format. Total length of this sleeve is 71 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 27 mm, the smaller one of 31 mm. The ends have no fillet.
Parameter Value Unit
side A length 27 mm
side A outer diameter 126 mm
side A thickness 3 mm
side B length 31 mm
side B outer diameter 91 mm
side B thickness 3 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 130–107 mm (Length: 75 mm) (📦 #5048)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 130–107 mm (Length: 75 mm)
Inline tube adapter ⌀130 mm to ⌀107 mm in STL format. Final length of this sleeve is 75 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 130 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 107 mm
side B thickness 3 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 110–108 mm (Length: 80 mm) (📦 #8095)

1 object(s) - format STL
Tubing adapter STL file ⌀ 110–108 mm (Length: 80 mm)
Inline tube adapter ⌀110 mm to ⌀108 mm in STL 3D format. Total length of this connector is 80 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends are rounded on the outside to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 110 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 108 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on th...