Looking for advise on a custom fit portable aircon window..

[j4g3d]

Right guys,
I have a portable aircon unit and have bought some perspex thats cut perfectly for my window. I've cut a hole out so that the aircon hose fits into the perspex sheet.

I need some ideas on how I can attach the sheet to the window securely. I have a house cat, so she cannot get out. Temporarily I've used cable trunking (taking the lid off) and stuck one at the bottom of the window frame and one at the top and the perspex slides in, but it's not reliable. I want something different so it's more secure and so it can easily be removed when not in use. Something like a twisty arm that can be moved up or down to lock and unlock the perspex.

Would love to hear your ideas on what I could use.

Thanks

 

[freddiemercurystwin]

So if I'm following you open your window and in its place you stick a bit of perspex over the opening (that has the AC duct passing through it) and need a secure method of holding the perspex in place?

 

[j4g3d]

So if I'm following you open your window and in its place you stick a bit of perspex over the opening (that has the AC duct passing through it) and need a secure method of holding the perspex in place?

That is correct

 

[foxhole]

Bin the plastic.
https://www.screwfix.com/p/goodhome...VTNPtCh1w7AwpEAQYAyABEgJotfD_BwE&gclsrc=aw.ds

 

[j4g3d]

Bin the plastic.
https://www.screwfix.com/p/goodhome...VTNPtCh1w7AwpEAQYAyABEgJotfD_BwE&gclsrc=aw.ds

Saw that before I went down the DIY route. This wouldn't be as secure enough for me. Besides, my sheet of perspex will work upstairs and downstairs as and when I need it.