Rectangular tube insert 15×25 mm, grey
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Rectangular tube insert 15×25 mm, made of polyethylene, grey. Tube wall thickness 1.0–2.0 mm. External section height 5.0 mm, internal section height 12.9 mm. Core 10.3 x 19.9 mm, ribs 13.9 x 23.9 mm. Weight 2.4 g.
Product code: 002-779
Product features
[PIM] zaslepki-prostokatne #1027
- Profile [mm] 15×25
- Colour Grey
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Rectangular
- Profile [mm] 15×25
- Colour Grey
Description
Rectangular tube insert 15×25 mm, grey

The grey Rectangular tube insert 15×25 mm closes the open end of a hollow tube, giving it a neat, finished appearance. It is designed for businesses that regularly assemble structures from steel or aluminium tubes and need a simple, consistent finishing component.
The insert is made of polyethylene. Its internal section has ribs that slide into the tube and press against its walls, while the outer flange covers the tube edge.
Applications and selection
- Closing the ends of rectangular tubes with a nominal size of 15×25 mm, used in frames, supports and metal structures.
- One insert fits tubes with different wall thicknesses within the range specified, simplifying selection when ordering.
- Inserts of this type close the tube opening and provide a neat finish.
- Selection involves matching the nominal tube size and its wall thickness.

Installation
Push the insert into the open end of the tube until the flange rests against its edge. The ribs hold it in the tube, while the smooth surface of the flange creates an even finish. Before installation, check that the tube opening is free from burrs left by cutting.
Polyethylene is commonly used to manufacture tube inserts. The insert's grey colour is neutral and suits many types of structures.
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