Plumbing eshopps eclipse L

[GoodGreef15]

Just wondering what ill need to run from my drains on the overflow box. Do i have to run a 1.25" to 1" reducer if i am running 1" abs
Or is it just 1" abs from the overflow bulkheads?

 

[UncommonSense]

Just wondering what ill need to run from my drains on the overflow box. Do i have to run a 1.25" to 1" reducer if i am running 1" abs
Or is it just 1" abs from the overflow bulkheads?

It appears to be 1”

https://www.bulkreefsupply.com/eclipse-l-overflow-box-1000-gph-eshopps.html

 

[GoodGreef15]

I was a bit stumped because i measured the bulk head drain and it seemed a bit larger then 1". So i had to ask.