De or het profieldiepte?

The correct Dutch article is:

de profieldiepte

Rule Words ending in -te: usually de. See the rule

How to use profieldiepte

the profieldieptede profieldiepte
this profieldieptedeze profieldiepte
that profieldieptedie profieldiepte
our profieldiepteonze profieldiepte
your profieldieptejouw profieldiepte
every profieldiepteelke profieldiepte
which profieldiepte?welke profieldiepte?
a big profieldiepte / the big profieldiepteeen grote profieldiepte, de grote profieldiepte