Custom Tubing adapter STL file ⌀ 33–28 mm (Length: 170 mm) 📦#7244

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Straight sleeve ⌀33 mm to ⌀28 mm in STL format. Length of this reducer is 170 mm. The thickness of the tubes is identical: 2 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.
Generation date: 2026-02-14
3D Model Tubing adapter STL file ⌀ 33–28 mm (Length: 170 mm)

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  • inline-tube-adapter-lenA80mm-d_model7244-nb0_dd{id}.stl : 1.1 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 80 mm (≃3.15 in)
#2 side A outer diameter 33 mm (≃1 5/16 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 80 mm (≃3.15 in)
#5 side B outer diameter 28 mm (≃1.10 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) 29 mm (≃1.14 in)
inner diameter (side B) 24 mm (≃15/16 in)
total length 170 mm (≃6 11/16 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 ⌀ 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 file ⌀ 60–30 mm (Length: 140 mm) (📦 #4786)

1 object(s) - format STL
Tubing adapter STL file ⌀ 60–30 mm (Length: 140 mm)
Tube reducer ⌀60 mm to ⌀30 mm in STL 3D format. Total length of this coupler is 140 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 60 mm, the smaller one of 60 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 60 mm
side A thickness 2.5 mm
side B length 60 mm
side B outer diameter 30 mm
side B thickness 2.5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 36–32 mm (Length: 210 mm) (📦 #9203)

1 object(s) - format STL
Tube adapter STL file ⌀ 36–32 mm (Length: 210 mm)
Inline sleeve ⌀36 mm to ⌀32 mm in STL 3D format. Length of this adapter is 210 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 100 mm, the smaller one of 100 mm as well. The ends are raw.
Parameter Value Unit
side A length 100 mm
side A outer diameter 36 mm
side A thickness 3 mm
side B length 100 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 10 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

Tubing adapter STL 3D file ⌀ 80–46 mm (Length: 160 mm) (📦 #3941)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 80–46 mm (Length: 160 mm)
Inline sleeve ⌀80 mm to ⌀46 mm in STL 3D format. Length of this fitting is 160 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 have no fillet.
Parameter Value Unit
side A length 80 mm
side A outer diameter 80 mm
side A thickness 3 mm
side B length 60 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 33–24 mm (Length: 110 mm) (📦 #7249)

1 object(s) - format STL
Tube adapter STL file ⌀ 33–24 mm (Length: 110 mm)
Tube reducer ⌀33 mm to ⌀24 mm in STL 3D format. Length of this coupler 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 50 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 33 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 24 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 44–40 mm (Length: 110 mm) (📦 #8091)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 44–40 mm (Length: 110 mm)
Tubing adapter ⌀44 mm to ⌀40 mm in STL format. Final length of this junction is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 30–25 mm (Length: 120 mm) (📦 #10229)

1 object(s) - format STL
Tube adapter STL file ⌀ 30–25 mm (Length: 120 mm)
Tubing reducer ⌀30 mm to ⌀25 mm in STL 3D format. Length of this connector is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 43–31 mm (Length: 120 mm) (📦 #2849)

1 object(s) - format STL
Tube adapter STL file ⌀ 43–31 mm (Length: 120 mm)
Tube adapter ⌀43 mm to ⌀31 mm in STL format. Final length of this coupler is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 43 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 31 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 56–50 mm (Length: 120 mm) (📦 #1493)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 56–50 mm (Length: 120 mm)
Inline fitting ⌀56 mm to ⌀50 mm in STL format. Length of this adapter is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 56 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 50 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 63–43 mm (Length: 120 mm) (📦 #5796)

1 object(s) - format STL
Tubing adapter STL file ⌀ 63–43 mm (Length: 120 mm)
Inline tube junction ⌀63 mm to ⌀43 mm in STL 3D format. Length of this junction is 120 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 50 mm as well. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 63 mm
side A thickness 2.5 mm
side B length 50 mm
side B outer diameter 43 mm
side B thickness 2.5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–36 mm (Length: 100 mm) (📦 #7761)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–36 mm (Length: 100 mm)
Straight tubing adapter ⌀39 mm to ⌀36 mm in STL 3D format. Total length of this sleeve is 100 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 40 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 39 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 36 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 51–48 mm (Length: 110 mm) (📦 #8084)

1 object(s) - format STL
Tubing adapter STL file ⌀ 51–48 mm (Length: 110 mm)
Inline tubing adapter ⌀51 mm to ⌀48 mm in STL format. Length of this reducer is 110 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 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 51 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 48 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 62–32 mm (Length: 124 mm) (📦 #6512)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 62–32 mm (Length: 124 mm)
Straight tube adapter ⌀62 mm to ⌀32 mm in STL 3D format. Total length of this junction is 124 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 64 mm, the smaller one of 40 mm. The ends have no fillet.
Parameter Value Unit
side A length 64 mm
side A outer diameter 62 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 32–26 mm (Length: 140 mm) (📦 #9751)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 32–26 mm (Length: 140 mm)
Inline tube reducer ⌀32 mm to ⌀26 mm in STL 3D format. Final length of this adapter is 140 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 50 mm as well. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 26 mm
side B thickness 2 mm
transition length 40 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 3D file ⌀ 32–30 mm (Length: 110 mm) (📦 #9306)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 32–30 mm (Length: 110 mm)
Straight tube fitting ⌀32 mm to ⌀30 mm in STL format. Final length of this adapter is 110 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends feature an external fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 32 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 70–68 mm (Length: 110 mm) (📦 #4281)

1 object(s) - format STL
Tube adapter STL file ⌀ 70–68 mm (Length: 110 mm)
Inline tube adapter ⌀70 mm to ⌀68 mm in STL format. Total length of this adapter 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 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 70 mm
side A thickness 2 mm
side B length 50 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 file ⌀ 77–31 mm (Length: 120 mm) (📦 #7703)

1 object(s) - format STL
Tube adapter STL file ⌀ 77–31 mm (Length: 120 mm)
Tube reducer ⌀77 mm to ⌀31 mm in STL format. Length of this connector is 120 mm. The larger-diameter tube has a thickness of 2.3 mm and a sleeve length of 80 mm. The smaller-diameter tube has a thickness of 2.4 mm and a length of 30 mm. The ends are raw.
Parameter Value Unit
side A length 80 mm
side A outer diameter 77 mm
side A thickness 2.3 mm
side B length 30 mm
side B outer diameter 31 mm
side B thickness 2.4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 77–57 mm (Length: 125 mm) (📦 #2313)

1 object(s) - format STL
Tube adapter STL file ⌀ 77–57 mm (Length: 125 mm)
Inline tube junction ⌀77 mm to ⌀57 mm in STL format. Length of this fitting is 125 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 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 77 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 57 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 80–60 mm (Length: 120 mm) (📦 #8278)

1 object(s) - format STL
Tubing adapter STL file ⌀ 80–60 mm (Length: 120 mm)
Straight tube fitting ⌀80 mm to ⌀60 mm in STL 3D format. Total length of this sleeve is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 80 mm
side A thickness 2 mm
side B length 50 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 3D file ⌀ 92–84 mm (Length: 164 mm) (📦 #6690)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 92–84 mm (Length: 164 mm)
Straight tube coupler ⌀92 mm to ⌀84 mm in STL 3D format. Length of this fitting is 164 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 76 mm, the smaller one of 76 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 76 mm
side A outer diameter 92 mm
side A thickness 3 mm
side B length 76 mm
side B outer diameter 84 mm
side B thickness 3 mm
transition length 12 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

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 file ⌀ 32–25 mm (Length: 85 mm) (📦 #7957)

1 object(s) - format STL
Tubing adapter STL file ⌀ 32–25 mm (Length: 85 mm)
Straight tubing adapter ⌀32 mm to ⌀25 mm in STL 3D format. Final length of this coupler is 85 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 47–25 mm (Length: 90 mm) (📦 #10118)

1 object(s) - format STL
Tube adapter STL file ⌀ 47–25 mm (Length: 90 mm)
Tube fitting ⌀47 mm to ⌀25 mm in STL 3D format. Length of this adapter is 90 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 40 mm
side A outer diameter 47 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 10 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