Custom Tube adapter STL file ⌀ 71–68 mm (Length: 50 mm) 📦#8366

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Inline fitting ⌀71 mm to ⌀68 mm in STL format. Total length of this reducer 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 are not rounded.
Generation date: 2026-04-09
3D Model Tube adapter STL file ⌀ 71–68 mm (Length: 50 mm)

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  • inline-tube-adapter-lenA20mm-d_model8366-nb0_dd{id}.stl : 604.8 Ko
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 20 mm (≃0.79 in)
#2 side A outer diameter 71 mm (≃2.80 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 20 mm (≃0.79 in)
#5 side B outer diameter 68 mm (≃2 11/16 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 10 mm (≃0.39 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 67 mm (≃2 5/8 in)
inner diameter (side B) 64 mm (≃2.52 in)
total length 50 mm (≃1.97 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 ⌀ 76–63 mm (Length: 50 mm) (📦 #6154)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 76–63 mm (Length: 50 mm)
Tubing adapter ⌀76 mm to ⌀63 mm in STL 3D format. Length of this fitting 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 no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 76 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 63 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 64–60 mm (Length: 50 mm) (📦 #3467)

1 object(s) - format STL
Tube adapter STL file ⌀ 64–60 mm (Length: 50 mm)
Tube adapter ⌀64 mm to ⌀60 mm in STL format. Length of this reducer is 50 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 64 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 74–60 mm (Length: 60 mm) (📦 #7129)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 74–60 mm (Length: 60 mm)
Tubing reducer ⌀74 mm to ⌀60 mm in STL 3D format. Total length of this fitting is 60 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 74 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 80–60 mm (Length: 60 mm) (📦 #1882)

1 object(s) - format STL
Tube adapter STL file ⌀ 80–60 mm (Length: 60 mm)
Tube connector ⌀80 mm to ⌀60 mm in STL 3D format. Final length of this connector 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 are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 77–69 mm (Length: 70 mm) (📦 #7155)

1 object(s) - format STL
Tubing adapter STL file ⌀ 77–69 mm (Length: 70 mm)
Inline tube coupler ⌀77 mm to ⌀69 mm in STL format. 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 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 77 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 69 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 80–77 mm (Length: 60 mm) (📦 #7234)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 80–77 mm (Length: 60 mm)
Inline tube coupler ⌀80 mm to ⌀77 mm in STL format. Length of this adapter is 60 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 77 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 77–65 mm (Length: 70 mm) (📦 #7153)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 77–65 mm (Length: 70 mm)
Tube fitting ⌀77 mm to ⌀65 mm in STL 3D format. Final 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 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 77 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 65 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 77–72 mm (Length: 70 mm) (📦 #7161)

1 object(s) - format STL
Tubing adapter STL file ⌀ 77–72 mm (Length: 70 mm)
Straight tube reducer ⌀77 mm to ⌀72 mm in STL format. Total length of this coupler is 70 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 are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 77 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 72 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 77–73 mm (Length: 70 mm) (📦 #7157)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 77–73 mm (Length: 70 mm)
Tube connector ⌀77 mm to ⌀73 mm in STL format. Total length of this coupler is 70 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a 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 77 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 73 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 86–76 mm (Length: 60 mm) (📦 #8206)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 86–76 mm (Length: 60 mm)
Inline tube junction ⌀86 mm to ⌀76 mm in STL 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 20 mm, the smaller one of 20 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 86 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 76 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 70–68 mm (Length: 70 mm) (📦 #4282)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 70–68 mm (Length: 70 mm)
Straight tube coupler ⌀70 mm to ⌀68 mm in STL format. Length of this reducer is 70 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 not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 70 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 68 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 80–70 mm (Length: 30 mm) (📦 #4891)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 80–70 mm (Length: 30 mm)
Inline sleeve ⌀80 mm to ⌀70 mm in STL format. Length of this connector is 30 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 not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 70 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 90–80 mm (Length: 48 mm) (📦 #3260)

1 object(s) - format STL
Tube adapter STL file ⌀ 90–80 mm (Length: 48 mm)
Straight tube adapter ⌀90 mm to ⌀80 mm in STL 3D format. Final length of this coupler is 48 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 18 mm, the smaller one of 25 mm. The ends have no fillet.
Parameter Value Unit
side A length 18 mm
side A outer diameter 90 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 80 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 90–82 mm (Length: 48 mm) (📦 #3261)

1 object(s) - format STL
Tube adapter STL file ⌀ 90–82 mm (Length: 48 mm)
Inline tube reducer ⌀90 mm to ⌀82 mm in STL 3D format. Length of this sleeve is 48 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 18 mm, the smaller one of 25 mm. The ends have no fillet.
Parameter Value Unit
side A length 18 mm
side A outer diameter 90 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 82 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 80–70 mm (Length: 30 mm) (📦 #4892)

1 object(s) - format STL
Tubing adapter STL file ⌀ 80–70 mm (Length: 30 mm)
Tubing adapter ⌀80 mm to ⌀70 mm in STL format. Final length of this sleeve is 30 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 axes of the tubes are off-center by 2 mm. The ends are raw.
Parameter Value Unit
side A length 10 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 70 mm
side B thickness 2 mm
transition length 10 mm
axis offset 2 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 90–85 mm (Length: 39 mm) (📦 #3259)

1 object(s) - format STL
Tubing adapter STL file ⌀ 90–85 mm (Length: 39 mm)
Tubing adapter ⌀90 mm to ⌀85 mm in STL 3D format. Final length of this junction is 39 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 18 mm, the smaller one of 16 mm. The ends are not rounded.
Parameter Value Unit
side A length 18 mm
side A outer diameter 90 mm
side A thickness 2 mm
side B length 16 mm
side B outer diameter 85 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 76–75 mm (Length: 80 mm) (📦 #6528)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 76–75 mm (Length: 80 mm)
Inline tube adapter ⌀76 mm to ⌀75 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 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 76 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 75 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 84–70 mm (Length: 30 mm) (📦 #4901)

1 object(s) - format STL
Tubing adapter STL file ⌀ 84–70 mm (Length: 30 mm)
Straight tube adapter ⌀84 mm to ⌀70 mm in STL format. Total length of this coupler is 30 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 axes of the tubes are off-center by 3 mm. The ends are raw.
Parameter Value Unit
side A length 10 mm
side A outer diameter 84 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 70 mm
side B thickness 2 mm
transition length 10 mm
axis offset 3 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 85–63 mm (Length: 80 mm) (📦 #5681)

1 object(s) - format STL
Tubing adapter STL file ⌀ 85–63 mm (Length: 80 mm)
Inline tube coupler ⌀85 mm to ⌀63 mm in STL 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 are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 85 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 63 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 79–78 mm (Length: 80 mm) (📦 #4587)

1 object(s) - format STL
Tubing adapter STL file ⌀ 79–78 mm (Length: 80 mm)
Tubing reducer ⌀79 mm to ⌀78 mm in STL format. Length of this junction 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 are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 79 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 78 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 65–49 mm (Length: 70 mm) (📦 #8434)

1 object(s) - format STL
Tubing adapter STL file ⌀ 65–49 mm (Length: 70 mm)
Straight tube adapter ⌀65 mm to ⌀49 mm in STL format. Total length of this adapter is 70 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 65 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 49 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 104–60 mm (Length: 40 mm) (📦 #2607)

1 object(s) - format STL
Tube adapter STL file ⌀ 104–60 mm (Length: 40 mm)
Tube fitting ⌀104 mm to ⌀60 mm in STL 3D format. Total length of this reducer is 40 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 are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 104 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 50–49 mm (Length: 57 mm) (📦 #3608)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 50–49 mm (Length: 57 mm)
Tube junction ⌀50 mm to ⌀49 mm in STL 3D format. Final length of this adapter is 57 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 26 mm, the smaller one of 26 mm as well. The ends are raw.
Parameter Value Unit
side A length 26 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 26 mm
side B outer diameter 49 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 74–67 mm (Length: 85 mm) (📦 #8728)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 74–67 mm (Length: 85 mm)
Diameter adapter ⌀74 mm to ⌀67 mm in STL 3D format. Total length of this junction is 85 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 35 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 74 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 67 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 75–67 mm (Length: 85 mm) (📦 #8732)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 75–67 mm (Length: 85 mm)
Inline sleeve ⌀75 mm to ⌀67 mm in STL format. Final length of this junction is 85 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 35 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 75 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 67 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 74–64 mm (Length: 85 mm) (📦 #8730)

1 object(s) - format STL
Tube adapter STL file ⌀ 74–64 mm (Length: 85 mm)
Tube connector ⌀74 mm to ⌀64 mm in STL 3D format. Total length of this connector is 85 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 35 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 74 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 64 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 85–70 mm (Length: 30 mm) (📦 #4903)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 85–70 mm (Length: 30 mm)
Straight tube reducer ⌀85 mm to ⌀70 mm in STL format. Length of this connector is 30 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 axes of the tubes are offset by 4 mm. The ends are raw.
Parameter Value Unit
side A length 10 mm
side A outer diameter 85 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 70 mm
side B thickness 2 mm
transition length 10 mm
axis offset 4 mm
ends fillet no fillet