De or het visserijuitrusting?

The correct Dutch article is:

de visserijuitrusting

Rule Words ending in -ing: almost always de. See the rule

How to use visserijuitrusting

the visserijuitrustingde visserijuitrusting
this visserijuitrustingdeze visserijuitrusting
that visserijuitrustingdie visserijuitrusting
our visserijuitrustingonze visserijuitrusting
your visserijuitrustingjouw visserijuitrusting
every visserijuitrustingelke visserijuitrusting
which visserijuitrusting?welke visserijuitrusting?
a big visserijuitrusting / the big visserijuitrustingeen grote visserijuitrusting, de grote visserijuitrusting