What size bulkhead is this?

[1mbrews8]

So it’s been a long time, but the bulkhead on my top RODI mix is leaking a little bit, even though I tried putting a ton of silicone on lol, so time to replace.

It’s three-quarter inch pipe/fittings going into it, but it looks like it has a reducer in the bulkhead.

So I’m thinking it’s a 1 inch bulkhead but anybody else have any thoughts?

I can’t really get a ruler/see/get accurate or anything since it’s a strange angle to measure it

 

[Doberman13]

Are there any identifying marks on those elbows?
Some brands will have the size marked. I don't see any reducers so you might be able to follow the pipe down and measure farther down the line.

 

[enderg60]

1" bulkhead, piping is 3/4"

 

[1mbrews8]

1" bulkhead, piping is 3/4"

thx!

 

[1mbrews8]

So I thought this one might work, got it from my storage unit, and it fits the three-quarter inch pipe perfectly, but smaller than the bulkhead that’s in there now.

So the one that’s in there now, and the hole that’s already drilled for it, must be one size up per se than this.

total size of the biggest part of new one in pictures that I was going to use is 2 inches, inner hole is 1 inch, outer threaded is inch and a quarter

 

[scuba steve]

That post pretty much confirms the 1" bulkhead with reducer to 3/4" pipe

 

[1mbrews8]

That’s what I’m thinking!