Custom 8 hoses connector STL 3D model – Outer diameter 28 mm, wall thickness 3.25 mm 📦#12104

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This STL 3D hoses distribution manifold with 8 hoses is available for download. This multi-way connector provides 8 hoses, arranged in a star pattern with 45° between each branch. Each branch is sized for tubes with an outer diameter of 28 mm and an inner diameter of 21.5 mm. This model uses a wall of 3.25 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.
Generation date: 2026-09-28
3D Model 8 hoses connector STL 3D model – Outer diameter 28 mm, wall thickness 3.25 mm

3D model download

Free
  • multi-way-tube-splitter-nbP8-o_model12104-nb0_dd{id}.stl : 6.5 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 8
#2 outer diameter 28 mm (≃1.10 in)
#3 inner diameter 21.5 mm (≃0.85 in)
#4 end fillets both
Metadata Value
wall thickness 3.25 mm (≃1/8 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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1 object(s) - format STL
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Parameter Value Unit
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1 object(s) - format STL
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Parameter Value Unit
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1 object(s) - format STL
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Parameter Value Unit
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1 object(s) - format STL
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Parameter Value Unit
number of ports 4
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Distribution manifold 4 ways STL file – Outer diameter 20 mm, wall thickness 2.5 mm (📦 #6111)

1 object(s) - format STL
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Parameter Value Unit
number of ports 4
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1 object(s) - format STL
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3D STL model of a multi-tubes fitting with 4 tubes, ready to use in your projects. This cross-style model offers 4 tubes, spaced regularly by 90° around the center. Each branch is sized for tubes with an outer diameter of 8 mm and an inner diameter of 4 mm. The wall is thin, with a thickness of 2 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 4
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1 object(s) - format STL
multi-tubes fitting 5 tubes STL file – Outer diameter 17 mm, wall thickness 4.25 mm
STL 3D file of a multi-tubes connector 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 17 mm and an inner diameter of 8.5 mm. Internal fillets are added at the ends to make tube insertion easier and reduce snagging. 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 5
outer diameter 17 mm
inner diameter 8.5 mm
end fillets inside

Distribution manifold 4 hoses STL 3D file – Outer diameter 68 mm, wall thickness 4 mm (📦 #11714)

1 object(s) - format STL
distribution manifold 4 hoses STL 3D file – Outer diameter 68 mm, wall thickness 4 mm
Download this STL 3D multi-tubes fitting model with 4 tubes. The connector uses a cross-shaped layout, with 4 tubes set 90° from one another. Each branch is sized for tubes with an outer diameter of 68 mm and an inner diameter of 60 mm. The wall has a thickness of 4 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 4
outer diameter 68 mm
inner diameter 60 mm
end fillets outside

Multi-tubes connector 3 tubes STL 3D model – Outer diameter 18 mm, wall thickness 1 mm (📦 #5695)

1 object(s) - format STL
multi-tubes connector 3 tubes STL 3D model – Outer diameter 18 mm, wall thickness 1 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. 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
outer diameter 18 mm
inner diameter 16 mm
end fillets both

Distribution manifold 3 ways STL file – Outer diameter 37.3 mm, wall thickness 2.65 mm (📦 #12272)

1 object(s) - format STL
distribution manifold 3 ways STL file – Outer diameter 37.3 mm, wall thickness 2.65 mm
Download this STL 3D multi-way ways manifold model with 3 ways. 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 37.3 mm and an inner diameter of 32 mm. The wall thickness is 2.65 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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inner diameter 32.0 mm
end fillets both