Rectangular tube insert 25×70 mm, black
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Rectangular tube insert 25×70 mm, made of black polyethylene. Profile wall thickness: 1.5–3.0 mm. External section height: 5.0 mm; internal section height: 16.8 mm. Core dimensions: 17.3 x 62.3 mm; rib dimensions: 23.2 x 67.7 mm. Weight: 0.009 kg.
Product code: 003-117
Product features
[PIM] zaslepki-prostokatne #1027
- Profile [mm] 25×70
- Colour Black
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Rectangular
- Profile [mm] 25×70
- Colour Black
Description
Rectangular tube insert 25×70 mm, black

The black Rectangular tube insert 25×70 mm is a finishing component that closes the open end of a hollow profile. It gives the profile edge a neat, even appearance and protects the inside of the tube from dirt.
The internal section of the insert features ribs that adapt to the profile walls when pressed into place, holding the insert securely. The wide range of compatible wall thicknesses allows the same model to be used with profiles of varying wall thicknesses, simplifying selection for structural installers.
Applications
- Closing the ends of steel and aluminium profiles with a 25×70 mm rectangular cross-section
- Finishing support structures, frames, frameworks and railings
- Protecting open profile ends from dirt
- The black colour complements dark structures and profiles
The insert is made of polyethylene — a material commonly used for this type of component. Inserts of this type are fitted by pressing them into the profile opening until the external section sits flush against its edge. The product is sold individually.

Selecting the right insert for the profile
When selecting an insert, the key factors are the nominal profile size and its wall thickness, which must fall within the range specified for this model. The internal section with ribs fits inside the profile, while the external section forms a flange that covers the edge of the tube. The dimensions of the internal and external sections are provided in the specification tables below.
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