Custom Distribution manifold 3 tubes STL 3D model – Outer diameter 22 mm, wall thickness 1 mm 📦#10148

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STL 3D file of a ways distribution manifold with 3 ways, ready to download. The three branches are arranged evenly, with an angular step of 120° between each outlet. The branch sections accept tubes with an outer diameter of 22 mm and provide an internal passage of 20 mm. This part uses a very thin wall (1 mm). External fillets are added at the ends to make it easier to slip the connector into ducts or hoses. It could be used to branch off flexible ducts, hoses, or rigid pipes in custom layouts.
Generation date: 2026-07-15
3D Model Distribution manifold 3 tubes STL 3D model – Outer diameter 22 mm, wall thickness 1 mm

3D model download

Free
  • multi-way-tube-splitter-nbP3-o_model10148-nb0_dd{id}.stl : 1.3 Mo
STL Mesh quality : Linear deflection 0.001 Angular deflection 0.1
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
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Values for this model

This model was generated by the Multi-way Tube Splitter / Connector template, with the following values:
Parameter Value
#1 number of ports 3
#2 outer diameter 22 mm (≃7/8 in)
#3 inner diameter 20 mm (≃0.79 in)
#4 end fillets outside
Metadata Value
wall thickness 1 mm (≃0.04 in)
illustration of the parameters
Parameter overview

The usable length of each branch, measured from the central hub to the end of the tube, is equal to the outer diameter × 1.2.

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 number of ports nbP
#2 outer diameter ouD
#3 inner diameter inD
#4 end fillets fil

Related 3D models

To search for a model based on your own parameters, go to the template page Multi-way Tube Splitter / Connector 

STL 3D file of a multi-way tubes manifold with 3 tubes, ready to download. The three branches are arranged evenly, with an angular step of 120° between each outlet. The connector is designed for tubes with a 25 mm outer diameter and a 20 mm inner diameter. The wall has a thickness of 2.5 mm. External end fillets improve engagement and reduce snagging on the outer edges. This multi-way connector could be used in ventilation setups, air distribution lines, or fluid circuits where the flow needs to be split.
Parameter Value Unit
number of ports 3
outer diameter 25 mm
inner diameter 20 mm
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STL 3D file of a multi-way ways manifold with 3 ways, ready to download. This Y-style model provides 3 ways, each separated by 120° for a balanced flow split. Each branch is sized for tubes with an outer diameter of 20 mm and an inner diameter of 15 mm. The wall has a thickness of 2.5 mm. External fillets are added at the ends to make it easier to slip the connector into ducts or hoses. This part could suit extraction systems, air-cooling setups, or any project where a flow has to be routed toward several outlets.
Parameter Value Unit
number of ports 3
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This STL 3D ways distribution manifold with 3 ways is available for download. The three branches are arranged evenly, with an angular step of 120° between each outlet. Each branch is sized for tubes with an outer diameter of 17.3 mm and an inner diameter of 15.3 mm. A wall thickness of 1 mm corresponds to a very thin shell. External fillets are added at the ends to make it easier to slip the connector into ducts or hoses. This multi-way connector could be used in ventilation setups, air distribution lines, or fluid circuits where the flow needs to be split.
Parameter Value Unit
number of ports 3
outer diameter 17.3 mm
inner diameter 15.3 mm
end fillets outside
3D STL model of a multi-ways connector with 3 ways, ready to use in your projects. The three branches are arranged evenly, with an angular step of 120° between each outlet. The connector is designed for tubes with a 10 mm outer diameter and a 8.5 mm inner diameter. The wall is very thin, with a thickness of 0.75 mm. External fillets are added at the ends to make it easier to slip the connector into ducts or hoses. This part could suit extraction systems, air-cooling setups, or any project where a flow has to be routed toward several outlets.
Parameter Value Unit
number of ports 3
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end fillets outside
Download this STL 3D multi-way ways manifold model with 3 ways. The three branches are arranged evenly, with an angular step of 120° between each outlet. The branch sections accept tubes with an outer diameter of 50 mm and provide an internal passage of 30 mm. This thickness (10 mm) corresponds to a very thick wall. External fillets are added at the ends to make it easier to slip the connector into ducts or hoses. This multi-way connector could be used in ventilation setups, air distribution lines, or fluid circuits where the flow needs to be split.
Parameter Value Unit
number of ports 3
outer diameter 50 mm
inner diameter 30 mm
end fillets outside
This STL 3D ways distribution manifold with 4 ways is available for download. The four branches are distributed symmetrically, with an angular step of 90° between each branch. Each branch is sized for tubes with an outer diameter of 20 mm and an inner diameter of 15 mm. This model uses a wall of 2.5 mm. External end fillets improve engagement and reduce snagging on the outer edges. It could be used to branch off flexible ducts, hoses, or rigid pipes in custom layouts.
Parameter Value Unit
number of ports 4
outer diameter 20 mm
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end fillets outside
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Parameter Value Unit
number of ports 3
outer diameter 50 mm
inner diameter 46 mm
end fillets outside
3D STL model of a multi-ways connector with 3 ways, ready to use in your projects. The connector has a Y-shaped layout with 3 ways, spaced 120° apart around the center axis. The connector is designed for tubes with a 18 mm outer diameter and a 16 mm inner diameter. The wall is very thin, with a thickness of 1 mm. The internal and external edges at each branch end are softened, which makes assembly more comfortable. The model could be adapted for custom installations, hose routing, or technical projects that need a compact distribution fitting.
Parameter Value Unit
number of ports 3
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inner diameter 16 mm
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Parameter Value Unit
number of ports 3
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Download this STL 3D multi-ways connector model with 3 ways. The three branches are arranged evenly, with an angular step of 120° between each outlet. The connector is designed for tubes with a 12.6 mm outer diameter and a 10.6 mm inner diameter. This part uses a very thin wall (1 mm). Both internal and external fillets are applied at the ends to ease tube insertion and duct engagement. This part could suit extraction systems, air-cooling setups, or any project where a flow has to be routed toward several outlets.
Parameter Value Unit
number of ports 3
outer diameter 12.6 mm
inner diameter 10.6 mm
end fillets both
STL 3D file of a ways distribution manifold with 3 ways, ready to download. The three branches are arranged evenly, with an angular step of 120° between each outlet. The branch sections accept tubes with an outer diameter of 10 mm and provide an internal passage of 8 mm. A wall thickness of 1 mm corresponds to a very thin shell. The internal and external edges at each branch end are softened, which makes assembly more comfortable. This multi-way connector could be used in ventilation setups, air distribution lines, or fluid circuits where the flow needs to be split.
Parameter Value Unit
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Parameter Value Unit
number of ports 3
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3D STL model of a ways distribution manifold with 3 ways, ready to use in your projects. This Y-style model provides 3 ways, each separated by 120° for a balanced flow split. The branch sections accept tubes with an outer diameter of 6.3 mm and provide an internal passage of 4.3 mm. The wall is very thin, with a thickness of 1 mm. The ends feature internal and external fillets, reducing sharp edges and making installation easier. This multi-way connector could be used in ventilation setups, air distribution lines, or fluid circuits where the flow needs to be split.
Parameter Value Unit
number of ports 3
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end fillets both
Download this STL 3D multi-ways connector model with 3 ways. The three branches are arranged evenly, with an angular step of 120° between each outlet. The connector is designed for tubes with a 5 mm outer diameter and a 3 mm inner diameter. The wall is very thin, with a thickness of 1 mm. The ends feature internal and external fillets, reducing sharp edges and making installation easier. It could be used to branch off flexible ducts, hoses, or rigid pipes in custom layouts.
Parameter Value Unit
number of ports 3
outer diameter 5 mm
inner diameter 3 mm
end fillets both
This STL 3D multi-way hoses manifold with 3 hoses is available for download. The connector has a Y-shaped layout with 3 hoses, spaced 120° apart around the center axis. Each branch is sized for tubes with an outer diameter of 5 mm and an inner diameter of 2.9 mm. The wall is thin, with a thickness of 1.05 mm. The ends feature internal and external fillets, reducing sharp edges and making installation easier. It could be used to branch off flexible ducts, hoses, or rigid pipes in custom layouts.
Parameter Value Unit
number of ports 3
outer diameter 5 mm
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end fillets both
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
number of ports 4
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Parameter Value Unit
number of ports 4
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inner diameter 25 mm
end fillets both
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Parameter Value Unit
number of ports 4
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STL 3D file of a multi-hoses connector with 3 hoses, ready to download. The connector has a Y-shaped layout with 3 hoses, spaced 120° apart around the center axis. The branch sections accept tubes with an outer diameter of 46.5 mm and provide an internal passage of 40.5 mm. The wall thickness is 3 mm. The internal and external edges at each branch end are softened, which makes assembly more comfortable. This part could suit extraction systems, air-cooling setups, or any project where a flow has to be routed toward several outlets.
Parameter Value Unit
number of ports 3
outer diameter 46.5 mm
inner diameter 40.5 mm
end fillets both
Download this STL 3D multi-ways fitting model with 4 ways. The connector uses a cross-shaped layout, with 4 ways set 90° from one another. The branch sections accept tubes with an outer diameter of 10 mm and provide an internal passage of 8 mm. This part uses a very thin wall (1 mm). The internal and external edges at each branch end are softened, which makes assembly more comfortable. This part could suit extraction systems, air-cooling setups, or any project where a flow has to be routed toward several outlets.
Parameter Value Unit
number of ports 4
outer diameter 10 mm
inner diameter 8 mm
end fillets both
STL 3D file of a multi-ways fitting with 3 ways, ready to download. The three branches are arranged evenly, with an angular step of 120° between each outlet. The branch sections accept tubes with an outer diameter of 50 mm and provide an internal passage of 40 mm. A thickness of 5 mm corresponds to a thick wall. The internal and external edges at each branch end are softened, which makes assembly more comfortable. The model could be adapted for custom installations, hose routing, or technical projects that need a compact distribution fitting.
Parameter Value Unit
number of ports 3
outer diameter 50 mm
inner diameter 40 mm
end fillets both