Heater holder drawings

[TexAgReefer]

I’m having a custom sump made and I want it to include heater holders. The builder said they would do it if I provided the technical drawings.

I can do it but why do what has already been done.

Does anyone have technical drawings they would be willing to share?

 

[Snoopy 67]

Not a drawing but sold here & what I would buy.
https://octoaquatics.com/product/octo-strong-heater-holder/