Type of pipe with track

[M3T]

Hi,

I am looking for pipe track similar to this pipe track. Is there such a thing or is it a case of welding some t-section to tube (not cheap)?

 

[Gareth0123]

If that is just a guide for a cable operated pulley to run up and down and stop it from twisting around, then it would be easy enough to weld up from suitable Circular Hollow Section (CHS) and flat bar.