Help with cool tube

Can anyone help me find the exavt length of these cool tubes? I can not get a straight answer from anywhere.... Amazon says one length, reveiws say another thing. Can someone please help me. I even tried callimg the manufacturer amd they are not open...

https://www.amazon.com/Apollo-Horticulture-GLRCT24E-Hydroponic-Reflector/dp/B00BMVPXL2

Here is the exact hoods.

Prolly not much help as I don't have that brand but mine was advertised as 18" and it's actually 26". The glass portion is exactly 18" though.

Don't go by reviews from 3 years ago. They may have changed the design slightly. If you look at the manufacturer's specifications they say the length is 26.7 inches.

Man i wish there was someone out there that just has this hood and can tell me.

After looking some more i think its 26 inches...

Which is still a little to big for what i need. Wondering if they slip into each other

Both ends of mine are the same size. You could cut it to size. There's almost always a way.

Already got the tubes.

They are 24 3/4 inches