Rectangular tube insert 25×50 mm, grey
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Rectangular tube insert 25×50 mm, made of polyethylene, grey. Flat flange and ribs on the internal section. Tube wall thickness 1.5–3.0 mm, internal section height 16 mm, external section height 5 mm. Weight 0.0081 kg.
Product code: 003-148
Product features
[PIM] zaslepki-prostokatne #1027
- Profile [mm] 25×50
- Colour Grey
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Rectangular
- Profile [mm] 25×50
- Colour Grey
Description
Rectangular tube insert 25×50 mm, grey

The grey Rectangular tube insert 25×50 mm is a practical finishing component for closing the open ends of hollow sections. Made of polyethylene, its flat flange covers the edge of the tube, giving the end of the structure a neat, attractive finish.
The internal section has ribs that press against the tube walls and hold the insert in place. The insert is designed for tubes within a specified wall thickness range, allowing it to be used with tubes of the same nominal dimensions but different wall thicknesses.
Applications
- Closing the ends of steel and aluminium tubes with a 25×50 mm rectangular cross-section
- Finishing support structures, frames, frameworks and railings
- Providing a neat finish to the open ends of hollow sections
- A neutral grey finish that blends well with most metal structures
Plastic inserts are commonly used where the open end of a tube would be visible or requires a neat finish. Sold individually, they make it easy to select the exact quantity needed for a job.

The nominal tube dimensions and wall thickness are key factors when selecting an insert. A correctly sized insert fits into the tube opening, with the flange sitting against its edge to create an even finish.
The grey colour and smooth flange surface make the insert a discreet addition to the structure. Polyethylene is a material commonly used for this type of finishing component.
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