filter and heater cut outs on hood

[zacheyp]

i got my hood 4 my 20 gal and was wondering how do i make my cutouts.

 

[barterking85]

A jig saw with a plastic cutting blade works great but if you notice lines where the knock outs should be you can use a utility knife

 

[Supra]

I scored the areas that were not prescored with a utility knife and just snapped it off
Supra