Multiple if statements in a family? or something like it.

[ReachAndre]

Hello all,
I am looking for a way to allow my parameter within my diffuser to change when the flow changes.
I made a shared parameter called "Diffuser Text Tag Value"

I wanted to put in a range like follows but don't know how.
Any help would be appreciated

if(Flow > 0 CFM, "6x6/6Ø", " ")
if(Flow > 100 CFM, "8x8/8Ø", " ")
if(Flow > 220 CFM, "10x10/10Ø", " ")
if(Flow > 345 CFM, "12x12/10Ø", " ")
if(Flow > 400 CFM, "14x14/12Ø", " ")
if(Flow > 545 CFM, "16x16/14Ø", " ")
if(Flow > 900 CFM, "18x18", " ")
if(Flow > 1200 CFM, "!!ERROR!! Too much.", " ")

Thanks all in advance,
Andre

P.S. I also will be using this to size the duct connectors.

[neightyeight]

You would need to nest the if statements. This should work:
if(Flow > 1200 CFM, "!ERROR!", if(Flow > 900 CFM, "18x18", if(Flow > 545 CFM, "16x16/14Ø", if(Flow > 400 CFM, "14x14/12Ø", if(Flow > 345 CFM, "12x12/10Ø", if(Flow > 220 CFM, "10x10/10Ø", if(Flow > 100 CFM, "8x8/8Ø", "6x6/6Ø")))))))

I think I wrote that all down correctly...

[ReachAndre]

You would need to nest the if statements. ......

It worked thanks. I had thought of that I just wasnt sure some of the formatting for the families.

Thanks again,
Andre