Custom Tubing adapter STL file ⌀ 56–17 mm (Length: 213 mm) 📦#7299

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Straight tube coupler ⌀56 mm to ⌀17 mm in STL 3D format. Total length of this junction is 213 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 8 mm, the smaller one of 165 mm. The ends are raw.
Generation date: 2026-02-15
3D Model Tubing adapter STL file ⌀ 56–17 mm (Length: 213 mm)

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  • inline-tube-adapter-lenA8mm-di_model7299-nb0_dd{id}.stl : 3 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
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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 8 mm (≃5/16 in)
#2 side A outer diameter 56 mm (≃2.20 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 165 mm (≃6 1/2 in)
#5 side B outer diameter 17 mm (≃0.67 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 40 mm (≃1 9/16 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 52 mm (≃2 1/16 in)
inner diameter (side B) 13 mm (≃1/2 in)
total length 213 mm (≃8 3/8 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 ⌀ 56–17 mm (Length: 183 mm) (📦 #7300)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 56–17 mm (Length: 183 mm)
Inline sleeve ⌀56 mm to ⌀17 mm in STL format. Final length of this fitting is 183 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 8 mm, the smaller one of 135 mm. The ends are raw.
Parameter Value Unit
side A length 8 mm
side A outer diameter 56 mm
side A thickness 2 mm
side B length 135 mm
side B outer diameter 17 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 58–16 mm (Length: 195 mm) (📦 #7000)

1 object(s) - format STL
Tubing adapter STL file ⌀ 58–16 mm (Length: 195 mm)
Tube connector ⌀58 mm to ⌀16 mm in STL format. Length of this fitting is 195 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 5 mm, the smaller one of 175 mm. The axes of the tubes are off-center by 2 mm. The ends have no fillet.
Parameter Value Unit
side A length 5 mm
side A outer diameter 58 mm
side A thickness 2 mm
side B length 175 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 15 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL file ⌀ 29–16 mm (Length: 195 mm) (📦 #6999)

1 object(s) - format STL
Tube adapter STL file ⌀ 29–16 mm (Length: 195 mm)
Tube adapter ⌀29 mm to ⌀16 mm in STL format. Final length of this fitting is 195 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 5 mm, the smaller one of 175 mm. The axes of the tubes are offset by 2 mm. The ends are not rounded.
Parameter Value Unit
side A length 5 mm
side A outer diameter 29 mm
side A thickness 2 mm
side B length 175 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 15 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 29–15 mm (Length: 195 mm) (📦 #6998)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 29–15 mm (Length: 195 mm)
Tube fitting ⌀29 mm to ⌀15 mm in STL format. Total length of this connector is 195 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 5 mm, the smaller one of 175 mm. The two axes of the tubes are off-center by 2 mm. The ends are raw.
Parameter Value Unit
side A length 5 mm
side A outer diameter 29 mm
side A thickness 2 mm
side B length 175 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 15 mm
axis offset 2 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 40–15 mm (Length: 165 mm) (📦 #4194)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 40–15 mm (Length: 165 mm)
Inline fitting ⌀40 mm to ⌀15 mm in STL 3D format. Final length of this junction is 165 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 150 mm. The ends have no fillet.
Parameter Value Unit
side A length 10 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 150 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 40–26 mm (Length: 200 mm) (📦 #7059)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 40–26 mm (Length: 200 mm)
Tube coupler ⌀40 mm to ⌀26 mm in STL format. Total length of this reducer is 200 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 150 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 40 mm
side A thickness 3 mm
side B length 150 mm
side B outer diameter 26 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 29–21 mm (Length: 230 mm) (📦 #7802)

1 object(s) - format STL
Tubing adapter STL file ⌀ 29–21 mm (Length: 230 mm)
Straight tube adapter ⌀29 mm to ⌀21 mm in STL 3D format. Final length of this junction is 230 mm. The larger-diameter tube has a thickness of 4 mm and a length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 200 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 29 mm
side A thickness 4 mm
side B length 200 mm
side B outer diameter 21 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 44–38 mm (Length: 180 mm) (📦 #6685)

1 object(s) - format STL
Tubing adapter STL file ⌀ 44–38 mm (Length: 180 mm)
Tube coupler ⌀44 mm to ⌀38 mm in STL 3D format. Length of this coupler is 180 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 120 mm. The two axes of the tubes are off-center by 2.9 mm. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 120 mm
side B outer diameter 38 mm
side B thickness 2 mm
transition length 20 mm
axis offset 2.9 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 47–28 mm (Length: 180 mm) (📦 #6702)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 47–28 mm (Length: 180 mm)
Tube coupler ⌀47 mm to ⌀28 mm in STL 3D format. Total length of this coupler is 180 mm. The larger-diameter tube has a thickness of 3 mm and a length of 40 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 120 mm. The axes of the tubes are off-center by 2.9 mm. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 47 mm
side A thickness 3 mm
side B length 120 mm
side B outer diameter 28 mm
side B thickness 2 mm
transition length 20 mm
axis offset 2.9 mm
ends fillet no fillet

Tube adapter STL file ⌀ 45–35 mm (Length: 155 mm) (📦 #5340)

1 object(s) - format STL
Tube adapter STL file ⌀ 45–35 mm (Length: 155 mm)
Tube adapter ⌀45 mm to ⌀35 mm in STL 3D format. Total length of this sleeve is 155 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 5 mm, the smaller one of 100 mm. The ends have no fillet.
Parameter Value Unit
side A length 5 mm
side A outer diameter 45 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 35 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 29–25 mm (Length: 230 mm) (📦 #7797)

1 object(s) - format STL
Tubing adapter STL file ⌀ 29–25 mm (Length: 230 mm)
Straight tube adapter ⌀29 mm to ⌀25 mm in STL format. Length of this junction is 230 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 200 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 29 mm
side A thickness 4 mm
side B length 200 mm
side B outer diameter 25 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

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

Tubing adapter STL 3D file ⌀ 55–30 mm (Length: 150 mm) (📦 #9186)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 55–30 mm (Length: 150 mm)
Tube reducer ⌀55 mm to ⌀30 mm in STL format. Final length of this coupler is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 100 mm. The two axes of the tubes are offset by 12.4 mm. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 55 mm
side A thickness 2 mm
side B length 100 mm
side B outer diameter 30 mm
side B thickness 2 mm
transition length 10 mm
axis offset 12.4 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 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

Tubing adapter STL file ⌀ 46–41 mm (Length: 95 mm) (📦 #8409)

1 object(s) - format STL
Tubing adapter STL file ⌀ 46–41 mm (Length: 95 mm)
Straight sleeve ⌀46 mm to ⌀41 mm in STL 3D format. Final length of this sleeve is 95 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 16 mm, the smaller one of 74 mm. The ends are raw.
Parameter Value Unit
side A length 16 mm
side A outer diameter 46 mm
side A thickness 3 mm
side B length 74 mm
side B outer diameter 41 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 80–77 mm (Length: 150 mm) (📦 #6566)

1 object(s) - format STL
Tube adapter STL file ⌀ 80–77 mm (Length: 150 mm)
Inline sleeve ⌀80 mm to ⌀77 mm in STL format. Total length of this fitting is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 90 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 90 mm
side B outer diameter 77 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 153–122 mm (Length: 250 mm) (📦 #5583)

1 object(s) - format STL
Tube adapter STL file ⌀ 153–122 mm (Length: 250 mm)
Straight tube connector ⌀153 mm to ⌀122 mm in STL format. Total length of this fitting is 250 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 190 mm. The two axes of the tubes are off-center by 10 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 153 mm
side A thickness 2 mm
side B length 190 mm
side B outer diameter 122 mm
side B thickness 2 mm
transition length 40 mm
axis offset 10 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 84–81 mm (Length: 150 mm) (📦 #6589)

1 object(s) - format STL
Tubing adapter STL file ⌀ 84–81 mm (Length: 150 mm)
Inline tubing adapter ⌀84 mm to ⌀81 mm in STL 3D format. Total length of this connector is 150 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 90 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 84 mm
side A thickness 2 mm
side B length 90 mm
side B outer diameter 81 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 48–25 mm (Length: 90 mm) (📦 #6238)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 48–25 mm (Length: 90 mm)
Diameter adapter ⌀48 mm to ⌀25 mm in STL format. Total length of this junction is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 60 mm. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 48 mm
side A thickness 2 mm
side B length 60 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 78–34 mm (Length: 260 mm) (📦 #6421)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 78–34 mm (Length: 260 mm)
Tube connector ⌀78 mm to ⌀34 mm in STL format. Total length of this sleeve is 260 mm. The larger-diameter tube has a thickness of 2.5 mm and a length of 60 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 100 mm. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 78 mm
side A thickness 2.5 mm
side B length 100 mm
side B outer diameter 34 mm
side B thickness 2 mm
transition length 100 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 60–15 mm (Length: 130 mm) (📦 #8396)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 60–15 mm (Length: 130 mm)
Tube reducer ⌀60 mm to ⌀15 mm in STL 3D format. Length of this adapter is 130 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 60 mm. The axes of the tubes are off-center by 9 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 50 mm
axis offset 9 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

Tubing adapter STL file ⌀ 53–46 mm (Length: 100 mm) (📦 #8995)

1 object(s) - format STL
Tubing adapter STL file ⌀ 53–46 mm (Length: 100 mm)
Tube coupler ⌀53 mm to ⌀46 mm in STL 3D format. Length of this sleeve 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 60 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 53 mm
side A thickness 2 mm
side B length 60 mm
side B outer diameter 46 mm
side B thickness 2 mm
transition length 10 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 ⌀ 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...

Tube adapter STL 3D file ⌀ 111–56 mm (Length: 160 mm) (📦 #7462)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 111–56 mm (Length: 160 mm)
Straight tubing adapter ⌀111 mm to ⌀56 mm in STL format. Total length of this coupler is 160 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 raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 111 mm
side A thickness 3 mm
side B length 70 mm
side B outer diameter 56 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet