Custom 4 ways connector STL 3D file – Outer diameter 100 mm, wall thickness 5 mm 📦#8518

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Download this STL 3D ways distribution manifold 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 100 mm and provide an internal passage of 90 mm. The external edges at each branch end are softened with fillets, which helps when inserting into an existing duct. This multi-way connector could be used in ventilation setups, air distribution lines, or fluid circuits where the flow needs to be split.
Generation date: 2026-04-17
3D Model 4 ways connector STL 3D file – Outer diameter 100 mm, wall thickness 5 mm

3D model download

Free
  • multi-way-tube-splitter-nbP4-o_model8518-nb0_dd{id}.stl : 1.7 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 4
#2 outer diameter 100 mm (≃3 15/16 in)
#3 inner diameter 90 mm (≃3.54 in)
#4 end fillets outside
Metadata Value
wall thickness 5 mm (≃3/16 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

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

3 ways fitting STL 3D model – Outer diameter 103 mm, wall thickness 1 mm (📦 #5024)

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Parameter Value Unit
number of ports 3
outer diameter 103 mm
inner diameter 101 mm
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Star-pattern fitting 3 hoses STL 3D model – Outer diameter 80 mm, wall thickness 2 mm (📦 #8508)

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STL 3D file of a multi-way ways manifold with 3 ways, ready to download. 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 80 mm outer diameter and a 76 mm inner diameter. The connector features a thin wall (2 mm). The external edges at each branch end are softened with fillets, which helps when inserting into an existing duct. 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 80 mm
inner diameter 76 mm
end fillets outside

Multi-ways fitting 3 ways STL file – Outer diameter 75.5 mm, wall thickness 1.75 mm (📦 #5440)

1 object(s) - format STL
multi-ways fitting 3 ways STL file – Outer diameter 75.5 mm, wall thickness 1.75 mm
This STL 3D multi-ways fitting with 3 ways is available for download. 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 75.5 mm outer diameter and a 72 mm inner diameter. The wall is thin, with a thickness of 1.75 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.
Parameter Value Unit
number of ports 3
outer diameter 75.5 mm
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Distribution manifold 3 tubes STL 3D model – Outer diameter 103 mm, wall thickness 1.5 mm (📦 #4608)

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distribution manifold 3 tubes STL 3D model – Outer diameter 103 mm, wall thickness 1.5 mm
This STL 3D hoses distribution manifold with 3 hoses is available for 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 103 mm and provide an internal passage of 100 mm. This thickness (1.5 mm) corresponds to a thin wall. The internal edges at each branch end are softened with fillets to help guide the tube during assembly. 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 103 mm
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Multi-ways connector 3 ways STL 3D file – Outer diameter 85 mm, wall thickness 2.5 mm (📦 #9877)

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multi-ways connector 3 ways STL 3D file – Outer diameter 85 mm, wall thickness 2.5 mm
Download this STL 3D hoses distribution manifold model with 3 hoses. This Y-style model provides 3 hoses, each separated by 120° for a balanced flow split. The branch sections accept tubes with an outer diameter of 85 mm and provide an internal passage of 80 mm. The wall thickness is 2.5 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 85 mm
inner diameter 80 mm
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3 ways fitting STL file – Outer diameter 120 mm, wall thickness 5 mm (📦 #5887)

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3D STL model of a multi-ways fitting 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 120 mm outer diameter and a 110 mm inner diameter. 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 110 mm
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Multi-tubes fitting 3 tubes STL 3D model – Outer diameter 75 mm, wall thickness 2.5 mm (📦 #6442)

1 object(s) - format STL
multi-tubes fitting 3 tubes STL 3D model – Outer diameter 75 mm, wall thickness 2.5 mm
Download this STL 3D ways distribution manifold 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 75 mm outer diameter and a 70 mm inner diameter. The wall thickness is 2.5 mm. The internal and external edges at each branch end are softened, which makes assembly more comfortable. 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 75 mm
inner diameter 70 mm
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Star-pattern fitting 3 ways STL 3D model – Outer diameter 50 mm, wall thickness 2 mm (📦 #9177)

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star-pattern fitting 3 ways STL 3D model – Outer diameter 50 mm, wall thickness 2 mm
Download this STL 3D multi-tubes connector model with 3 tubes. The connector has a Y-shaped layout with 3 tubes, spaced 120° apart around the center axis. The branch sections accept tubes with an outer diameter of 50 mm and provide an internal passage of 46 mm. This thickness (2 mm) corresponds to a thin wall. The external edges at each branch end are softened with fillets, which helps when inserting into an existing duct. It could be used to branch off flexible ducts, hoses, or rigid pipes in custom layouts.
Parameter Value Unit
number of ports 3
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Star-pattern connector 3 ways STL 3D model – Outer diameter 57.5 mm, wall thickness 1.5 mm (📦 #5716)

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star-pattern connector 3 ways STL 3D model – Outer diameter 57.5 mm, wall thickness 1.5 mm
Download this STL 3D multi-ways connector model with 3 ways. The connector has a Y-shaped layout with 3 ways, spaced 120° apart around the center axis. Each branch is sized for tubes with an outer diameter of 57.5 mm and an inner diameter of 54.5 mm. The connector features a thin wall (1.5 mm). Both internal and external fillets are applied at the ends to ease tube insertion and duct engagement. 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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Multi-tubes fitting 3 tubes STL file – Outer diameter 58 mm, wall thickness 4 mm (📦 #4817)

1 object(s) - format STL
multi-tubes fitting 3 tubes STL file – Outer diameter 58 mm, wall thickness 4 mm
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 58 mm and provide an internal passage of 50 mm. This model uses a wall of 4 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
outer diameter 58 mm
inner diameter 50 mm
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5 tubes connector STL 3D model – Outer diameter 50 mm, wall thickness 5 mm (📦 #9514)

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STL 3D file of a tubes distribution manifold with 5 tubes, ready to download. The branches are laid out in a star around the center, with 5 tubes and an angular step of 72°. Each branch is sized for tubes with an outer diameter of 50 mm and an inner diameter of 40 mm. This part features a thick wall of 5 mm. The external edges at each branch end are softened with fillets, which helps when inserting into an existing duct. 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
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Parameter Value Unit
number of ports 4
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Download this STL 3D multi-hoses connector model with 3 hoses. 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 50.7 mm and provide an internal passage of 46 mm. This model uses a wall of 2.35 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
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Star-pattern connector 4 ways STL 3D file – Outer diameter 90 mm, wall thickness 3 mm (📦 #7933)

1 object(s) - format STL
star-pattern connector 4 ways STL 3D file – Outer diameter 90 mm, wall thickness 3 mm
STL 3D file of a multi-ways fitting with 4 ways, ready to download. 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 90 mm and provide an internal passage of 84 mm. The wall has a thickness of 3 mm. No end fillets are applied, so both the inner and outer edges remain sharp. 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 4
outer diameter 90 mm
inner diameter 84 mm
end fillets none

Distribution manifold 3 ways STL file – Outer diameter 50 mm, wall thickness 10 mm (📦 #4555)

1 object(s) - format STL
distribution manifold 3 ways STL file – Outer diameter 50 mm, wall thickness 10 mm
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

Multi-hoses fitting 3 hoses STL 3D file – Outer diameter 48 mm, wall thickness 3 mm (📦 #4804)

1 object(s) - format STL
multi-hoses fitting 3 hoses STL 3D file – Outer diameter 48 mm, wall thickness 3 mm
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 connector is designed for tubes with a 48 mm outer diameter and a 42 mm inner diameter. The wall has a thickness of 3 mm. 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
number of ports 3
outer diameter 48 mm
inner diameter 42 mm
end fillets both

Star-pattern fitting 3 ways STL 3D file – Outer diameter 100 mm, wall thickness 4 mm (📦 #7874)

1 object(s) - format STL
star-pattern fitting 3 ways STL 3D file – Outer diameter 100 mm, wall thickness 4 mm
STL 3D file of a multi-ways connector 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 100 mm and an inner diameter of 92 mm. The wall thickness is 4 mm. No end fillets are applied, so both the inner and outer edges remain sharp. 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 100 mm
inner diameter 92 mm
end fillets none

3 ways fitting STL file – Outer diameter 100 mm, wall thickness 3 mm (📦 #7873)

1 object(s) - format STL
3 ways fitting STL file – Outer diameter 100 mm, wall thickness 3 mm
3D STL model of a multi-way hoses manifold with 3 hoses, ready to use in your projects. This Y-style model provides 3 hoses, each separated by 120° for a balanced flow split. Each branch is sized for tubes with an outer diameter of 100 mm and an inner diameter of 94 mm. The wall thickness is 3 mm. The ends are left without fillets, with raw inner and outer edges. 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 100 mm
inner diameter 94 mm
end fillets none

Multi-tubes fitting 3 tubes STL 3D model – Outer diameter 50 mm, wall thickness 5 mm (📦 #4531)

1 object(s) - format STL
multi-tubes fitting 3 tubes STL 3D model – Outer diameter 50 mm, wall thickness 5 mm
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

3 ways connector STL 3D file – Outer diameter 95 mm, wall thickness 3 mm (📦 #5184)

1 object(s) - format STL
3 ways connector STL 3D file – Outer diameter 95 mm, wall thickness 3 mm
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. Each branch is sized for tubes with an outer diameter of 95 mm and an inner diameter of 89 mm. This model uses a wall of 3 mm. The tube ends stay straight, with no internal or external fillets. 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 95 mm
inner diameter 89 mm
end fillets none

Star-pattern fitting 3 ways STL 3D model – Outer diameter 101.6 mm, wall thickness 1.5 mm (📦 #6375)

1 object(s) - format STL
star-pattern fitting 3 ways STL 3D model – Outer diameter 101.6 mm, wall thickness 1.5 mm
3D STL model of a multi-hoses fitting with 3 hoses, ready to use in your projects. The connector has a Y-shaped layout with 3 hoses, spaced 120° apart around the center axis. The connector is designed for tubes with a 101.6 mm outer diameter and a 98.6 mm inner diameter. The wall is thin, with a thickness of 1.5 mm. The tube ends stay straight, with no internal or external fillets. 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 101.6 mm
inner diameter 98.6 mm
end fillets none

Distribution manifold 3 ways STL 3D file – Outer diameter 103 mm, wall thickness 1.5 mm (📦 #7869)

1 object(s) - format STL
distribution manifold 3 ways STL 3D file – Outer diameter 103 mm, wall thickness 1.5 mm
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. Each branch is sized for tubes with an outer diameter of 103 mm and an inner diameter of 100 mm. This thickness (1.5 mm) corresponds to a thin wall. The ends are left without fillets, with raw inner and outer edges. 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 103 mm
inner diameter 100 mm
end fillets none

Star-pattern connector 3 tubes STL 3D file – Outer diameter 100 mm, wall thickness 12.4 mm (📦 #5448)

1 object(s) - format STL
star-pattern connector 3 tubes STL 3D file – Outer diameter 100 mm, wall thickness 12.4 mm
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 100 mm and an inner diameter of 75.2 mm. The connector has a very thick wall (12.4 mm). The ends are left without fillets, with raw inner and outer edges. 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 100 mm
inner diameter 75.2 mm
end fillets none

Star-pattern connector 3 tubes STL file – Outer diameter 46.5 mm, wall thickness 3 mm (📦 #4800)

1 object(s) - format STL
star-pattern connector 3 tubes STL file – Outer diameter 46.5 mm, wall thickness 3 mm
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

Multi-tubes connector 3 tubes STL 3D file – Outer diameter 80 mm, wall thickness 1 mm (📦 #6816)

1 object(s) - format STL
multi-tubes connector 3 tubes STL 3D file – Outer diameter 80 mm, wall thickness 1 mm
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. Each branch is sized for tubes with an outer diameter of 80 mm and an inner diameter of 78 mm. This part uses a very thin wall (1 mm). No end fillets are applied, so both the inner and outer edges remain sharp. 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 80 mm
inner diameter 78 mm
end fillets none

3 tubes manifold STL 3D file – Outer diameter 76 mm, wall thickness 2 mm (📦 #4918)

1 object(s) - format STL
3 tubes manifold STL 3D file – Outer diameter 76 mm, wall thickness 2 mm
Download this STL 3D multi-ways fitting model with 3 ways. The connector has a Y-shaped layout with 3 ways, spaced 120° apart around the center axis. Each branch is sized for tubes with an outer diameter of 76 mm and an inner diameter of 72 mm. The wall is thin, with a thickness of 2 mm. The tube ends stay straight, with no internal or external fillets. 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 76 mm
inner diameter 72 mm
end fillets none

4 ways fitting STL 3D file – Outer diameter 40 mm, wall thickness 3.75 mm (📦 #4530)

1 object(s) - format STL (1.0/5) 1 vote(s)
4 ways fitting STL 3D file – Outer diameter 40 mm, wall thickness 3.75 mm
This STL 3D multi-ways connector with 4 ways is available for download. This cross-style model offers 4 ways, spaced regularly by 90° around the center. The connector is designed for tubes with a 40 mm outer diameter and a 32.5 mm inner diameter. The wall has a thickness of 3.75 mm. The internal edges at each branch end are softened with fillets to help guide the tube during assembly. 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 40 mm
inner diameter 32.5 mm
end fillets inside