Custom Tubing adapter STL file ⌀ 36–12 mm (Length: 105 mm) 📦#9491

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Tube adapter ⌀36 mm to ⌀12 mm in STL format. Length of this junction is 105 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 40 mm as well. The ends have no fillet.
Generation date: 2026-06-17
3D Model Tubing adapter STL file ⌀ 36–12 mm (Length: 105 mm)

3D model download

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  • inline-tube-adapter-lenA40mm-d_model9491-nb0_dd{id}.stl : 2.3 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 40 mm (≃1 9/16 in)
#2 side A outer diameter 36 mm (≃1.42 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 40 mm (≃1 9/16 in)
#5 side B outer diameter 12 mm (≃0.47 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 25 mm (≃0.98 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 32 mm (≃1 1/4 in)
inner diameter (side B) 8 mm (≃5/16 in)
total length 105 mm (≃4 1/8 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 ⌀ 40–20 mm (Length: 110 mm) (📦 #3010)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 40–20 mm (Length: 110 mm)
Inline fitting ⌀40 mm to ⌀20 mm in STL format. Final length of this reducer is 110 mm. The larger-diameter tube has a thickness of 2 mm and a length of 40 mm. The smaller-diameter tube has a thickness of 2.2 mm and a length of 40 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 20 mm
side B thickness 2.2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 40–24 mm (Length: 110 mm) (📦 #3009)

1 object(s) - format STL
Tubing adapter STL file ⌀ 40–24 mm (Length: 110 mm)
Straight tube adapter ⌀40 mm to ⌀24 mm in STL 3D format. Total length of this adapter is 110 mm. The thickness of the tubes is identical: 2.1 mm. The larger-diameter tube has a sleeve 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 40 mm
side A thickness 2.1 mm
side B length 40 mm
side B outer diameter 24 mm
side B thickness 2.1 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 44–24 mm (Length: 110 mm) (📦 #3008)

1 object(s) - format STL
Tubing adapter STL file ⌀ 44–24 mm (Length: 110 mm)
Inline tube coupler ⌀44 mm to ⌀24 mm in STL 3D format. Total length of this fitting is 110 mm. The thickness of the tubes is identical: 2.1 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 44 mm
side A thickness 2.1 mm
side B length 40 mm
side B outer diameter 24 mm
side B thickness 2.1 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 44–24 mm (Length: 90 mm) (📦 #2322)

1 object(s) - format STL
Tube adapter STL file ⌀ 44–24 mm (Length: 90 mm)
Straight tube adapter ⌀44 mm to ⌀24 mm in STL format. Length of this junction is 90 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 have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 24 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 45–10 mm (Length: 97 mm) (📦 #1443)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 45–10 mm (Length: 97 mm)
Inline tube junction ⌀45 mm to ⌀10 mm in STL 3D format. Total length of this fitting is 97 mm. The larger-diameter tube has a thickness of 2.5 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 37 mm. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 37 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 43–10 mm (Length: 80 mm) (📦 #3379)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 43–10 mm (Length: 80 mm)
Inline tubing adapter ⌀43 mm to ⌀10 mm in STL 3D format. Total length of this reducer 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 have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 43 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 39–29 mm (Length: 90 mm) (📦 #2319)

1 object(s) - format STL
Tube adapter STL file ⌀ 39–29 mm (Length: 90 mm)
Tube coupler ⌀39 mm to ⌀29 mm in STL format. Final length of this coupler is 90 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 raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 39 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 29 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 40–29 mm (Length: 90 mm) (📦 #2321)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 40–29 mm (Length: 90 mm)
Inline tube coupler ⌀40 mm to ⌀29 mm in STL 3D format. Total length of this connector is 90 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 have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 29 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 45–10 mm (Length: 90 mm) (📦 #1260)

1 object(s) - format STL (4.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 45–10 mm (Length: 90 mm)
Inline sleeve ⌀45 mm to ⌀10 mm in STL format. Total length of this connector is 90 mm. The larger-diameter tube has a thickness of 2.5 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 30 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 44–16 mm (Length: 90 mm) (📦 #1270)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 44–16 mm (Length: 90 mm)
Inline fitting ⌀44 mm to ⌀16 mm in STL format. Final length of this sleeve is 90 mm. The larger-diameter tube has a thickness of 2.5 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 54–10 mm (Length: 80 mm) (📦 #8959)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 54–10 mm (Length: 80 mm)
Inline tube reducer ⌀54 mm to ⌀10 mm in STL format. Length of this sleeve 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 are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 54 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 45–9 mm (Length: 90 mm) (📦 #1271)

1 object(s) - format STL
Tube adapter STL file ⌀ 45–9 mm (Length: 90 mm)
Straight tube connector ⌀45 mm to ⌀9 mm in STL 3D format. Total length of this fitting is 90 mm. The larger-diameter tube has a thickness of 2.5 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 45–15 mm (Length: 90 mm) (📦 #1272)

1 object(s) - format STL
Tube adapter STL file ⌀ 45–15 mm (Length: 90 mm)
Tube coupler ⌀45 mm to ⌀15 mm in STL format. Total length of this sleeve is 90 mm. The larger-diameter tube has a thickness of 2.5 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 45 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 15 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 38–32 mm (Length: 90 mm) (📦 #4840)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 38–32 mm (Length: 90 mm)
Straight tube coupler ⌀38 mm to ⌀32 mm in STL format. Final length of this junction is 90 mm. The thickness of the tubes is identical: 2.3 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 30 mm. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 38 mm
side A thickness 2.3 mm
side B length 30 mm
side B outer diameter 32 mm
side B thickness 2.3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 39–32 mm (Length: 90 mm) (📦 #4181)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 39–32 mm (Length: 90 mm)
Inline tubing adapter ⌀39 mm to ⌀32 mm in STL 3D format. Final length of this reducer is 90 mm. The thickness of the tubes is identical: 2.3 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 39 mm
side A thickness 2.3 mm
side B length 30 mm
side B outer diameter 32 mm
side B thickness 2.3 mm
transition length 20 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

Tube adapter STL file ⌀ 40–12 mm (Length: 85 mm) (📦 #2465)

1 object(s) - format STL
Tube adapter STL file ⌀ 40–12 mm (Length: 85 mm)
Tube coupler ⌀40 mm to ⌀12 mm in STL format. Final length of this coupler is 85 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 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 25 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 40–16 mm (Length: 85 mm) (📦 #2463)

1 object(s) - format STL
Tube adapter STL file ⌀ 40–16 mm (Length: 85 mm)
Tube adapter ⌀40 mm to ⌀16 mm in STL format. Final length of this adapter 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 20 mm. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 16 mm
side B thickness 2 mm
transition length 25 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 ⌀ 37–33 mm (Length: 80 mm) (📦 #3410)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 37–33 mm (Length: 80 mm)
Inline tubing adapter ⌀37 mm to ⌀33 mm in STL format. Final 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 not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 37 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 33 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–33 mm (Length: 90 mm) (📦 #3411)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–33 mm (Length: 90 mm)
Straight tube fitting ⌀39 mm to ⌀33 mm in STL format. Total length of this reducer is 90 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 39 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 33 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 39–30 mm (Length: 80 mm) (📦 #6726)

1 object(s) - format STL
Tube adapter STL file ⌀ 39–30 mm (Length: 80 mm)
Inline tubing adapter ⌀39 mm to ⌀30 mm in STL format. Final length of this connector is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 35 mm, the smaller one of 35 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 35 mm
side A outer diameter 39 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 30 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 25–20 mm (Length: 100 mm) (📦 #6713)

1 object(s) - format STL
Tubing adapter STL file ⌀ 25–20 mm (Length: 100 mm)
Tube junction ⌀25 mm to ⌀20 mm in STL 3D format. Final length of this junction 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 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 25 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 32–19 mm (Length: 70 mm) (📦 #9115)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 32–19 mm (Length: 70 mm)
Tube coupler ⌀32 mm to ⌀19 mm in STL format. Total 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 35 mm, the smaller one of 25 mm. The ends are raw.
Parameter Value Unit
side A length 35 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 25 mm
side B outer diameter 19 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 44–36 mm (Length: 80 mm) (📦 #5045)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 44–36 mm (Length: 80 mm)
Straight tube adapter ⌀44 mm to ⌀36 mm in STL format. Length of this fitting 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 are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 36 mm
side B thickness 2 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 file ⌀ 35–31 mm (Length: 80 mm) (📦 #8143)

1 object(s) - format STL
Tubing adapter STL file ⌀ 35–31 mm (Length: 80 mm)
Tube fitting ⌀35 mm to ⌀31 mm in STL 3D format. Total length of this sleeve is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 35 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 31 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 36–25 mm (Length: 100 mm) (📦 #7760)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 36–25 mm (Length: 100 mm)
Inline sleeve ⌀36 mm to ⌀25 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 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 36 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet