Would anyone know the riser tube size for a CS6-2+?

Should be 1.5 as thats what my CS6-1 is. I think the 1.25 is for the ES5-3, ES5-2 etc models in the 5" tube size.
 
Both Gate valve kits I bought and have installed one on my CS6-1 were the 1.5" size and they fit no problem. The smaller pipes according to the ER site also go on the large skimmers with multiple pumps so Its not just the small ones
 
Look here as it may help:

Euro-Reef Gate Valve Assembly 1.5
Item #H-ER-GVOA-1.5

Gate Valve Assembly for a 6" & 8” Euro-Reef protein skimmers.



I bought this kit for the CS6-1 and it fit fine. You can look at this website to get an idea of sizes in the parts section:

Here
 
Yea that's weird. I'm pretty sure I have the CS6-1 cause it's had a 6 inch diameter body. But I'm pretty sure that the riser is 1.25. I'll have to check again.

Rich
 
FYI- you have to remove the riser and put the gate valve on the outer pipe. You can't just slap it onto the riser pipe
 
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