Custom Tube adapter STL file ⌀ 300–250 mm (Length: 80 mm) 📦#2560

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Inline tube junction ⌀300 mm to ⌀250 mm in STL 3D format. Final length of this junction is 80 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 10 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm. The ends are not rounded.
Generation date: 2025-10-18
3D Model Tube adapter STL file ⌀ 300–250 mm (Length: 80 mm)

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  • inline-tube-adapter-lenA10mm-d_model2560-nb0_dd{id}.stl : 7.7 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 10 mm (≃0.39 in)
#2 side A outer diameter 300 mm (≃11 13/16 in)
#3 side A thickness 4 mm (≃0.16 in)
#4 side B length 20 mm (≃0.79 in)
#5 side B outer diameter 250 mm (≃9.84 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 50 mm (≃1.97 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 292 mm (≃11 1/2 in)
inner diameter (side B) 246 mm (≃9 11/16 in)
total length 80 mm (≃3.15 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 

Tubing adapter STL file ⌀ 235–210 mm (Length: 20 mm) (📦 #5327)

1 object(s) - format STL
Tubing adapter STL file ⌀ 235–210 mm (Length: 20 mm)
Tube reducer ⌀235 mm to ⌀210 mm in STL format. Total length of this adapter is 20 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 5 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 235 mm
side A thickness 5 mm
side B length 5 mm
side B outer diameter 210 mm
side B thickness 5 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 204–198 mm (Length: 92 mm) (📦 #7392)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 204–198 mm (Length: 92 mm)
Tube connector ⌀204 mm to ⌀198 mm in STL format. Length of this fitting is 92 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 36 mm, the smaller one of 36 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 36 mm
side A outer diameter 204 mm
side A thickness 4 mm
side B length 36 mm
side B outer diameter 198 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 206–204 mm (Length: 65 mm) (📦 #7396)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 206–204 mm (Length: 65 mm)
Straight tube adapter ⌀206 mm to ⌀204 mm in STL format. Total length of this coupler is 65 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 not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 206 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 204 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 200–180 mm (Length: 80 mm) (📦 #1161)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 200–180 mm (Length: 80 mm)
Tube reducer ⌀200 mm to ⌀180 mm in STL format. Final length of this fitting is 80 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 200 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 180 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 204–202 mm (Length: 65 mm) (📦 #7399)

1 object(s) - format STL
Tubing adapter STL file ⌀ 204–202 mm (Length: 65 mm)
Tubing adapter ⌀204 mm to ⌀202 mm in STL 3D format. Final length of this connector is 65 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 204 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 202 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 198–154 mm (Length: 90 mm) (📦 #8386)

1 object(s) - format STL
Tube adapter STL file ⌀ 198–154 mm (Length: 90 mm)
Inline tubing adapter ⌀198 mm to ⌀154 mm in STL 3D format. Total length of this adapter is 90 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 are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 198 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 154 mm
side B thickness 3 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 245–210 mm (Length: 15 mm) (📦 #5305)

1 object(s) - format STL
Tubing adapter STL file ⌀ 245–210 mm (Length: 15 mm)
Tube coupler ⌀245 mm to ⌀210 mm in STL format. Final length of this coupler is 15 mm. The thickness of the tubes is identical: 6 mm. The larger-diameter tube has a length of 5 mm, the smaller one of 5 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 5 mm
side A outer diameter 245 mm
side A thickness 6 mm
side B length 5 mm
side B outer diameter 210 mm
side B thickness 6 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 250–200 mm (Length: 140 mm) (📦 #1162)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 250–200 mm (Length: 140 mm)
Tube fitting ⌀250 mm to ⌀200 mm in STL 3D format. Total length of this sleeve is 140 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 50 mm. The ends have a fillet on the outside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 60 mm
side A outer diameter 250 mm
side A thickness 5 mm
side B length 50 mm
side B outer diameter 200 mm
side B thickness 5 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 206–146 mm (Length: 94 mm) (📦 #4838)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 206–146 mm (Length: 94 mm)
Tubing adapter ⌀206 mm to ⌀146 mm in STL format. Total length of this junction is 94 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 28 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 206 mm
side A thickness 3 mm
side B length 28 mm
side B outer diameter 146 mm
side B thickness 3 mm
transition length 41 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 206–147 mm (Length: 105 mm) (📦 #4871)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 206–147 mm (Length: 105 mm)
Tube junction ⌀206 mm to ⌀147 mm in STL format. Total length of this fitting is 105 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 40 mm. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 206 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 147 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 200–147 mm (Length: 70 mm) (📦 #7496)

1 object(s) - format STL
Tubing adapter STL file ⌀ 200–147 mm (Length: 70 mm)
Straight tube coupler ⌀200 mm to ⌀147 mm in STL 3D format. Final 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 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 200 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 147 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 211–171 mm (Length: 180 mm) (📦 #3214)

1 object(s) - format STL
Tubing adapter STL file ⌀ 211–171 mm (Length: 180 mm)
Inline tube coupler ⌀211 mm to ⌀171 mm in STL 3D format. Total length of this fitting is 180 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 are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 211 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 171 mm
side B thickness 3 mm
transition length 80 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 200–150 mm (Length: 60 mm) (📦 #7944)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 200–150 mm (Length: 60 mm)
Inline sleeve ⌀200 mm to ⌀150 mm in STL 3D format. Total length of this adapter is 60 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 have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 200 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 150 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 198–153 mm (Length: 110 mm) (📦 #8387)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 198–153 mm (Length: 110 mm)
Straight tube fitting ⌀198 mm to ⌀153 mm in STL format. Total length of this reducer is 110 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 not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 198 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 153 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 205–165 mm (Length: 180 mm) (📦 #3159)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 205–165 mm (Length: 180 mm)
Inline sleeve ⌀205 mm to ⌀165 mm in STL 3D format. Final length of this junction is 180 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 are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 205 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 165 mm
side B thickness 3 mm
transition length 80 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 203–160 mm (Length: 150 mm) (📦 #9214)

1 object(s) - format STL
Tube adapter STL file ⌀ 203–160 mm (Length: 150 mm)
Tubing reducer ⌀203 mm to ⌀160 mm in STL format. Total length of this connector is 150 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 feature an external fillet to ease the connection.
Parameter Value Unit
side A length 50 mm
side A outer diameter 203 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 160 mm
side B thickness 3 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 200–165 mm (Length: 120 mm) (📦 #4822)

1 object(s) - format STL
Tube adapter STL file ⌀ 200–165 mm (Length: 120 mm)
Inline sleeve ⌀200 mm to ⌀165 mm in STL 3D format. Length of this sleeve is 120 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 200 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 165 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 200–150 mm (Length: 140 mm) (📦 #9073)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 200–150 mm (Length: 140 mm)
Inline tube coupler ⌀200 mm to ⌀150 mm in STL format. Length of this junction is 140 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 200 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 150 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 199–149 mm (Length: 150 mm) (📦 #9105)

1 object(s) - format STL
Tube adapter STL file ⌀ 199–149 mm (Length: 150 mm)
Tubing reducer ⌀199 mm to ⌀149 mm in STL format. Total length of this coupler 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 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 199 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 149 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 165–156 mm (Length: 60 mm) (📦 #5845)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 165–156 mm (Length: 60 mm)
Inline tube reducer ⌀165 mm to ⌀156 mm in STL 3D format. Total 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 raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 165 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 156 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 159–156 mm (Length: 50 mm) (📦 #8478)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 159–156 mm (Length: 50 mm)
Straight tube connector ⌀159 mm to ⌀156 mm in STL 3D format. Total length of this junction is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 15 mm. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 159 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 156 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 164–154 mm (Length: 34 mm) (📦 #7906)

1 object(s) - format STL
Tube adapter STL file ⌀ 164–154 mm (Length: 34 mm)
Tube adapter ⌀164 mm to ⌀154 mm in STL format. Length of this coupler is 34 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 12 mm, the smaller one of 12 mm as well. The ends are raw.
Parameter Value Unit
side A length 12 mm
side A outer diameter 164 mm
side A thickness 3 mm
side B length 12 mm
side B outer diameter 154 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 206–140 mm (Length: 80 mm) (📦 #5693)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 206–140 mm (Length: 80 mm)
Inline fitting ⌀206 mm to ⌀140 mm in STL format. Total length of this fitting 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 50 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 206 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 140 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 170–154 mm (Length: 70 mm) (📦 #2670)

1 object(s) - format STL
Tube adapter STL file ⌀ 170–154 mm (Length: 70 mm)
Tube reducer ⌀170 mm to ⌀154 mm in STL format. Length of this connector is 70 mm. The thickness of the tubes is identical: 2.5 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 170 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 154 mm
side B thickness 2.5 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 168–155 mm (Length: 65 mm) (📦 #8750)

1 object(s) - format STL
Tubing adapter STL file ⌀ 168–155 mm (Length: 65 mm)
Straight tube adapter ⌀168 mm to ⌀155 mm in STL format. Total length of this connector is 65 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 168 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 155 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet