Tube adapter ⌀ 20–5 mm (Length: 65 mm) 📦#1261

Name: STL 3D File Tube adapter ⌀ 20–5 mm (Length: 65 mm) #1261
Brand: iteration3d
SKU: 1261
Availability: InStock
Rating: 5 (1 reviews)

STL Download STL

Inline tube junction ⌀20 mm to ⌀5 mm in STL format. Total length of this coupler is 65 mm. The thickness of the tubes is identical: 2 mm. The ends feature an external fillet to ease the connection.

Generation date: 2025-07-25

3D Model Tube adapter ⌀ 20–5 mm (Length: 65 mm)

3D model download

Free

Download format: zip : 7.3 Mo (1 file(s))

inline-tube-adapter-lenA30mm-d_model1261-nb0_dd{id}.stl : 7.3 Mo

STL Mesh quality : not defined

License: CC BY - Creative commons

(attribution - commercial use allowed)

Values for this model

This model was generated by the Inline tube adapter template, with the following values:

	Parameter	Value
#1	side A length	30 mm
#2	side A outer diameter	20 mm
#3	side A thickness	2 mm
#4	side B length	30 mm
#5	side B outer diameter	5 mm
#6	side B thickness	2 mm
#7	transition length	5 mm
#8	axis offset	0 mm
#9	ends fillet	fillet on the outside

Representation of the parameters

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

Tube adapter ⌀ 38–10 mm (Length: 90 mm) (📦 #1269)

1 object(s) - format STL

3D model Tube adapter ⌀ 38–10 mm (Length: 90 mm)

Tube connector ⌀38 mm to ⌀10 mm in STL format. Final length of this fitting is 90 mm. The thickness of the larger diameter tube is 2.5 mm, and the smaller one is 2 mm. The ends are rounded on the outside.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	38	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	1

Tube adapter ⌀ 30–26 mm (Length: 50 mm) (📦 #1109)

1 object(s) - format STL (3.5/5) 2 vote(s)

3D model Tube adapter ⌀ 30–26 mm (Length: 50 mm)

Inline tube adapter ⌀30 mm to ⌀26 mm in STL format. Final length of this reducer is 50 mm. The thickness of the tubes is identical: 2 mm. The ends have no fillet.

Parameter	Value	Unit
side A length	15	mm
side A outer diameter	30	mm
side A thickness	2	mm
side B length	30	mm
side B outer diameter	26	mm
side B thickness	2	mm
transition length	5	mm
axis offset	0	mm
ends fillet	0

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

1 object(s) - format STL

3D model Tube adapter ⌀ 45–9 mm (Length: 90 mm)

Tube reducer ⌀45 mm to ⌀9 mm in STL format. Final length of this coupler is 90 mm. The thickness of the larger diameter tube is 2.5 mm, and the smaller one is 2 mm. 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	9	mm
side B thickness	2	mm
transition length	30	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 45–10 mm (Length: 90 mm) (📦 #1260)

1 object(s) - format STL (4.0/5) 1 vote(s)

3D model Tube adapter ⌀ 45–10 mm (Length: 90 mm)

Inline sleeve ⌀45 mm to ⌀10 mm in STL format. Final length of this junction is 90 mm. The thickness of the larger diameter tube is 2.5 mm, and the smaller one is 2 mm. 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	0

Tube adapter ⌀ 45–10 mm (Length: 97 mm) (📦 #1443)

1 object(s) - format STL

3D model Tube adapter ⌀ 45–10 mm (Length: 97 mm)

Straight tube coupler ⌀45 mm to ⌀10 mm in STL format. Length of this junction is 97 mm. The thickness of the larger diameter tube is 2.5 mm, and the smaller one is 2 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	0

Tube adapter ⌀ 44–16 mm (Length: 90 mm) (📦 #1270)

1 object(s) - format STL

3D model Tube adapter ⌀ 44–16 mm (Length: 90 mm)

Tube connector ⌀44 mm to ⌀16 mm in STL format. Length of this connector is 90 mm. The thickness of the larger diameter tube is 2.5 mm, and the smaller one is 2 mm. The ends have no fillet.

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	0

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

1 object(s) - format STL

3D model Tube adapter ⌀ 45–15 mm (Length: 90 mm)

Inline sleeve ⌀45 mm to ⌀15 mm in STL format. Length of this junction is 90 mm. The thickness of the larger diameter tube is 2.5 mm, and the smaller one is 2 mm. 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	0

Tube adapter ⌀ 32–25 mm (Length: 25 mm) (📦 #1103)

1 object(s) - format STL (5.0/5) 1 vote(s)

3D model Tube adapter ⌀ 32–25 mm (Length: 25 mm)

Inline tube reducer ⌀32 mm to ⌀25 mm in STL format. Final length of this reducer is 25 mm. The thickness of the tubes is identical: 2 mm. The ends are not rounded.

Parameter	Value	Unit
side A length	10	mm
side A outer diameter	32	mm
side A thickness	2	mm
side B length	10	mm
side B outer diameter	25	mm
side B thickness	2	mm
transition length	5	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 16–10 mm (Length: 15 mm) (📦 #1466)

1 object(s) - format STL

3D model Tube adapter ⌀ 16–10 mm (Length: 15 mm)

Tube connector ⌀16 mm to ⌀10 mm in STL format. Final length of this junction is 15 mm. The thickness of the tubes is identical: 2 mm. The ends are raw.

Parameter	Value	Unit
side A length	5	mm
side A outer diameter	16	mm
side A thickness	2	mm
side B length	5	mm
side B outer diameter	10	mm
side B thickness	2	mm
transition length	5	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 33–18 mm (Length: 50 mm) (📦 #1525)

1 object(s) - format STL

3D model Tube adapter ⌀ 33–18 mm (Length: 50 mm)

Tube reducer ⌀33 mm to ⌀18 mm in STL format. Total length of this fitting is 50 mm. The thickness of the larger diameter tube is 2.9 mm, and the smaller one is 2 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	20	mm
side B outer diameter	18	mm
side B thickness	2	mm
transition length	15	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 7–5.5 mm (Length: 15 mm) (📦 #1104)

1 object(s) - format STL (3.8/5) 5 vote(s)

3D model Tube adapter ⌀ 7–5.5 mm (Length: 15 mm)

Tube adapter ⌀7 mm to ⌀5.5 mm in STL format. Final length of this junction is 15 mm. The thickness of the tubes is identical: 2 mm. The ends are raw.

Parameter	Value	Unit
side A length	5	mm
side A outer diameter	7	mm
side A thickness	2	mm
side B length	5	mm
side B outer diameter	5.5	mm
side B thickness	2	mm
transition length	5	mm
axis offset	0.6	mm
ends fillet	0

Tube adapter ⌀ 66–41 mm (Length: 90 mm) (📦 #1793)

1 object(s) - format STL

3D model Tube adapter ⌀ 66–41 mm (Length: 90 mm)

Inline tube reducer ⌀66 mm to ⌀41 mm in STL format. Final length of this coupler is 90 mm. The thickness of the tubes is identical: 2 mm. The ends feature an external fillet to ease the connection.

Parameter	Value	Unit
side A length	40	mm
side A outer diameter	66	mm
side A thickness	2	mm
side B length	45	mm
side B outer diameter	41	mm
side B thickness	2	mm
transition length	5	mm
axis offset	0	mm
ends fillet	1

Tube adapter ⌀ 33–26 mm (Length: 50 mm) (📦 #1526)

1 object(s) - format STL

3D model Tube adapter ⌀ 33–26 mm (Length: 50 mm)

Straight tube adapter ⌀33 mm to ⌀26 mm in STL format. Final length of this junction is 50 mm. The thickness of the larger diameter tube is 2.8 mm, and the smaller one is 2 mm. The ends have no fillet.

Parameter	Value	Unit
side A length	15	mm
side A outer diameter	33	mm
side A thickness	2.8	mm
side B length	20	mm
side B outer diameter	26	mm
side B thickness	2	mm
transition length	15	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 33–10 mm (Length: 95 mm) (📦 #1522)

1 object(s) - format STL

3D model Tube adapter ⌀ 33–10 mm (Length: 95 mm)

Inline tube junction ⌀33 mm to ⌀10 mm in STL format. Total length of this connector is 95 mm. The thickness of the tubes is identical: 3 mm. The ends are not rounded.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	33	mm
side A thickness	3	mm
side B length	50	mm
side B outer diameter	10	mm
side B thickness	3	mm
transition length	15	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 25–20 mm (Length: 45 mm) (📦 #1101)

1 object(s) - format STL

3D model Tube adapter ⌀ 25–20 mm (Length: 45 mm)

Tube reducer ⌀25 mm to ⌀20 mm in STL format. Length of this reducer is 45 mm. The thickness of the tubes is identical: 3 mm. The ends are rounded on the inside to make tube connection easier.

Parameter	Value	Unit
side A length	15	mm
side A outer diameter	25	mm
side A thickness	3	mm
side B length	15	mm
side B outer diameter	20	mm
side B thickness	3	mm
transition length	15	mm
axis offset	0	mm
ends fillet	2

Tube adapter ⌀ 60–40 mm (Length: 85 mm) (📦 #1123)

1 object(s) - format STL

3D model Tube adapter ⌀ 60–40 mm (Length: 85 mm)

Straight sleeve ⌀60 mm to ⌀40 mm in STL format. Total length of this reducer is 85 mm. The thickness of the tubes is identical: 3 mm. The axes of the tubes are offset. The ends feature an external fillet to make tube connection easier.

Parameter	Value	Unit
side A length	40	mm
side A outer diameter	60	mm
side A thickness	3	mm
side B length	40	mm
side B outer diameter	40	mm
side B thickness	3	mm
transition length	5	mm
axis offset	1	mm
ends fillet	1

Tube adapter ⌀ 61–15 mm (Length: 80 mm) (📦 #1326)

1 object(s) - format STL

3D model Tube adapter ⌀ 61–15 mm (Length: 80 mm)

Tube fitting ⌀61 mm to ⌀15 mm in STL format. Total length of this sleeve is 80 mm. The thickness of the tubes is identical: 2 mm. The ends are not rounded.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	61	mm
side A thickness	2	mm
side B length	20	mm
side B outer diameter	15	mm
side B thickness	2	mm
transition length	40	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 16–12 mm (Length: 35 mm) (📦 #1097)

1 object(s) - format STL

3D model Tube adapter ⌀ 16–12 mm (Length: 35 mm)

Inline fitting ⌀16 mm to ⌀12 mm in STL format. Final length of this fitting is 35 mm. The thickness of the tubes is identical: 2 mm. The ends are rounded to ease the connection.

Parameter	Value	Unit
side A length	15	mm
side A outer diameter	16	mm
side A thickness	2	mm
side B length	15	mm
side B outer diameter	12	mm
side B thickness	2	mm
transition length	5	mm
axis offset	0	mm
ends fillet	3

Tube adapter ⌀ 60–45 mm (Length: 75 mm) (📦 #1234)

1 object(s) - format STL

3D model Tube adapter ⌀ 60–45 mm (Length: 75 mm)

Tube coupler ⌀60 mm to ⌀45 mm in STL format. Final length of this adapter is 75 mm. The thickness of the tubes is identical: 3 mm. The ends are not rounded.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	60	mm
side A thickness	3	mm
side B length	30	mm
side B outer diameter	45	mm
side B thickness	3	mm
transition length	15	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 56–50 mm (Length: 120 mm) (📦 #1493)

1 object(s) - format STL (5.0/5) 1 vote(s)

3D model Tube adapter ⌀ 56–50 mm (Length: 120 mm)

Straight sleeve ⌀56 mm to ⌀50 mm in STL format. Final length of this reducer is 120 mm. The thickness of the tubes is identical: 2 mm. The ends are not rounded.

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	0

Tube adapter ⌀ 80–30 mm (Length: 80 mm) (📦 #1587)

1 object(s) - format STL

3D model Tube adapter ⌀ 80–30 mm (Length: 80 mm)

Inline sleeve ⌀80 mm to ⌀30 mm in STL format. Final length of this connector is 80 mm. The thickness of the tubes is identical: 3 mm. The ends are not rounded.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	80	mm
side A thickness	3	mm
side B length	30	mm
side B outer diameter	30	mm
side B thickness	3	mm
transition length	20	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 16–12 mm (Length: 30 mm) (📦 #1513)

1 object(s) - format STL

3D model Tube adapter ⌀ 16–12 mm (Length: 30 mm)

Straight sleeve ⌀16 mm to ⌀12 mm in STL format. Length of this fitting is 30 mm. The thickness of the tubes is identical: 2 mm. The ends feature a fillet to facilitate the connection of the two tubes.

Parameter	Value	Unit
side A length	10	mm
side A outer diameter	16	mm
side A thickness	2	mm
side B length	15	mm
side B outer diameter	12	mm
side B thickness	2	mm
transition length	5	mm
axis offset	0	mm
ends fillet	3

Tube adapter ⌀ 76–50 mm (Length: 60 mm) (📦 #1358)

1 object(s) - format STL (5.0/5) 1 vote(s)

3D model Tube adapter ⌀ 76–50 mm (Length: 60 mm)

Straight tube fitting ⌀76 mm to ⌀50 mm in STL format. Final length of this adapter is 60 mm. The thickness of the tubes is identical: 2 mm. The ends are rounded on the inside to facilitate the connection of the two tubes.

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	50	mm
side B thickness	2	mm
transition length	20	mm
axis offset	0	mm
ends fillet	2

Tube adapter ⌀ 69–65 mm (Length: 100 mm) (📦 #1393)

1 object(s) - format STL

3D model Tube adapter ⌀ 69–65 mm (Length: 100 mm)

Inline sleeve ⌀69 mm to ⌀65 mm in STL format. Total length of this fitting is 100 mm. The thickness of the tubes is identical: 2 mm. The ends feature an external fillet to facilitate the connection of the two tubes.

Parameter	Value	Unit
side A length	40	mm
side A outer diameter	69	mm
side A thickness	2	mm
side B length	50	mm
side B outer diameter	65	mm
side B thickness	2	mm
transition length	10	mm
axis offset	0	mm
ends fillet	1

Tube adapter ⌀ 78–50 mm (Length: 60 mm) (📦 #1360)

1 object(s) - format STL

3D model Tube adapter ⌀ 78–50 mm (Length: 60 mm)

Tube reducer ⌀78 mm to ⌀50 mm in STL format. Total length of this sleeve is 60 mm. The thickness of the tubes is identical: 2 mm. The axes of the tubes are off-center. The ends are rounded on the inside to make tube connection easier.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	78	mm
side A thickness	2	mm
side B length	20	mm
side B outer diameter	50	mm
side B thickness	2	mm
transition length	20	mm
axis offset	1	mm
ends fillet	2

Tube adapter ⌀ 78–50 mm (Length: 80 mm) (📦 #1361)

1 object(s) - format STL

3D model Tube adapter ⌀ 78–50 mm (Length: 80 mm)

Straight tube fitting ⌀78 mm to ⌀50 mm in STL format. Final length of this connector is 80 mm. The thickness of the tubes is identical: 2 mm. The axes of the tubes are off-center. The ends have a fillet on the inside to ease the connection.

Parameter	Value	Unit
side A length	40	mm
side A outer diameter	78	mm
side A thickness	2	mm
side B length	20	mm
side B outer diameter	50	mm
side B thickness	2	mm
transition length	20	mm
axis offset	1	mm
ends fillet	2

Tube adapter ⌀ 80–50 mm (Length: 60 mm) (📦 #1359)

1 object(s) - format STL

3D model Tube adapter ⌀ 80–50 mm (Length: 60 mm)

Tube adapter ⌀80 mm to ⌀50 mm in STL format. Final length of this fitting is 60 mm. The thickness of the tubes is identical: 2 mm. The axes of the tubes are off-center. The ends feature an internal 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	50	mm
side B thickness	2	mm
transition length	20	mm
axis offset	1	mm
ends fillet	2

Tube adapter ⌀ 80–50 mm (Length: 80 mm) (📦 #1575)

1 object(s) - format STL

3D model Tube adapter ⌀ 80–50 mm (Length: 80 mm)

Inline tube reducer ⌀80 mm to ⌀50 mm in STL format. Total length of this adapter is 80 mm. The thickness of the tubes is identical: 2.5 mm. The ends have no fillet.

Parameter	Value	Unit
side A length	30	mm
side A outer diameter	80	mm
side A thickness	2.5	mm
side B length	30	mm
side B outer diameter	50	mm
side B thickness	2.5	mm
transition length	20	mm
axis offset	0	mm
ends fillet	0

Tube adapter ⌀ 81–55 mm (Length: 80 mm) (📦 #1440)

1 object(s) - format STL

3D model Tube adapter ⌀ 81–55 mm (Length: 80 mm)

Diameter adapter ⌀81 mm to ⌀55 mm in STL format. Final length of this adapter is 80 mm. The thickness of the tubes is identical: 2.5 mm. The ends feature an external fillet.

Parameter	Value	Unit
side A length	25	mm
side A outer diameter	81	mm
side A thickness	2.5	mm
side B length	25	mm
side B outer diameter	55	mm
side B thickness	2.5	mm
transition length	30	mm
axis offset	0	mm
ends fillet	1

Tube adapter ⌀ 70–69 mm (Length: 50 mm) (📦 #1394)

1 object(s) - format STL

3D model Tube adapter ⌀ 70–69 mm (Length: 50 mm)

Tube adapter ⌀70 mm to ⌀69 mm in STL format. Total length of this adapter is 50 mm. The thickness of the tubes is identical: 2 mm. The ends have a fillet on the outside to facilitate the connection of the two tubes.

Parameter	Value	Unit
side A length	20	mm
side A outer diameter	70	mm
side A thickness	2	mm
side B length	20	mm
side B outer diameter	69	mm
side B thickness	2	mm
transition length	10	mm
axis offset	0	mm
ends fillet	1