I bought door levers for entire house. They consist of orange, blue and red version. But now I found out on some doors I need them to be flipped - key hole on opposite lever.  Do you think it is possible to take out core from inside of the lever and put it in opposite lever? Or do I have to buy left/right version?

 

 

 

 

 

 

I've changed them over in the past, no real problems.

 

It's usually pretty obvious how it comes apart, beware of "things that go ping"!

I was recently looking for levers. They didn't ask me if I want a right or left version. I am pretty sure there is just one version. If you didn't do it already open the box. There is likely a manual inside which explains what to do.

The answer is yes, no and maybe. 
 

The Häfele locks are likely to work both ways. But some lock sets are handed so there is no real guarantee.

I didn't open it yet, because of possibility of returning it back if it is wrong orientation. I'm not even sure if Global House accepts returns?

9 hours ago, AndyAndyAndy said:

I didn't open it yet, because of possibility of returning it back if it is wrong orientation. I'm not even sure if Global House accepts returns?

Maybe look if he shows anywhere on the package: for left   or similar

And maybe find this thing on the Global House website and look if they have the same lock in left and right versions. I guess that should answer your question.

9 hours ago, AndyAndyAndy said:

I didn't open it yet, because of possibility of returning it back if it is wrong orientation. I'm not even sure if Global House accepts returns?

Simple answer. Find 2 doors that require the same lock set in different orientations, open 1 lock set. You can then see if it’s easy to change the orientation. Problem solved.