Rectangular tube insert 20×30 mm, black
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Rectangular tube insert 20×30 mm, made of black polyethylene. Flange height 5 mm, internal section height 14 mm with 18.5 x 28.5 mm ribs. Profile wall thickness 1.0–3.0 mm. Weight 0.004 kg.
Product code: 002-746
Product features
[PIM] zaslepki-prostokatne #1027
- Profile [mm] 20×30
- Colour Black
[PIM] zaslepki-do-rur-i-profili #1025
- Shape Rectangular
- Profile [mm] 20×30
- Colour Black
Description
Rectangular tube insert 20×30 mm, black

The black Rectangular tube insert 20×30 mm is a finishing component that closes the open end of a hollow profile. It protects the profile edge and gives the structure a neat, even finish.
The insert is made of polyethylene. The outer section forms a flange that covers the profile edge, while the ribbed internal section fits inside the profile and holds the insert in place. The compatible profile wall thickness range is specified in the Dimensions table below.
Polyethylene inserts are commonly used to close the ends of tubes and profiles made of steel, aluminium and other materials. They protect the inside of the profile from dirt and the user from the sharp, unfinished edge left after cutting.

Applications and selection
- protecting open ends of rectangular profiles in load-bearing structures, frames and bases
- neatly finishing visible profile ends in furniture, shelving, frames and balustrades
- a black finish that looks good on dark profiles and structures
- closing the ends of profiles used in simple support structures and frames
Before purchasing, check the external dimensions and wall thickness of the profile and compare them with the data in the table below. Press the insert into the profile opening until the flange rests against its edge. Before installation, ensure that the cut edge is clean and free of burrs, as this helps the flange sit evenly.
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