homebox XL,20cm exhaust and 12,5cm cooltube.is it a problem ?

[potenza]

hello my friends.confused farmer is here again.

i bought cooltube 49cm X 12,5 cm.
i will buy homebox XL.
i will buy 20 cm elicent 750 m3 extractor.
is it problem ? because,cooltube has 12,5 cm diameter and therefore i have to choose carbon filter and ducts that have 12,5 cm diameter ,but the diameter of the extractor is 20cm.
help me.i have no other options -probably -

look at pls:

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[samba]

You will lose some airflow.
Doesn't the xl come with 160mm "air-out"?
The new ones come with a 200mm on top
http://www.homebox.net/dhtml/product_family_homebox_xl.php

 

[cork144]

uh you better make sure that filter is rated for that cfm, unless your dimming it.

 

[potenza]

thanks for replies.

You will lose some airflow.
Doesn't the xl come with 160mm "air-out"?
The new ones come with a 200mm on top

but the diameter of cooltube is 12,5 cm.therefore i have to use 12,5 cm ducts,carbon filter and reducer 20 to 12,5 cm.

the recommended fan size is 420 m3.but i will use 1000m3 fan.with a fan controller,of course.
and i will use this fan at half speed.

i hope reducer works well.

 

[samba]

Why not just get a new cooltube@160mm?
And a bigger filter