Where to find replacement parts for Reef Octopus 1000 HOB skimmer

[CLYRIC]

I bought a used a reef octopus 1000 hob skimmer and it's missing the part for the intake, where can I get a replacement?

 

[Potatohead]

I would contact Coralvue

 

[CLYRIC]

I would contact Coralvue

Edit : Ignore the previous message.

Should I email them with this picture and ask them what I'm missing?