Silly Racor Drain Valve question

Jul 25, 2009
270
Catalina 1989 C30 Mk II Herrington Harbour South, MD
Hi all, hope the spring is finding you well.

What's the OD size of the drain valve's outlet nipple on the Racor spin-on diesel filter debris/water bowls? I think I have a 220R or something very much like it.

Mine is mounted in a fairly confined space and a little bit of hose would make my life much easier. Unfortunately I forgot to measure it last weekend. :doh:

Also, what're those extra plugs on top of the filter assembly for? I know what the vent "thumbwheel" screw is for, but not the other two.
 
Jul 25, 2009
270
Catalina 1989 C30 Mk II Herrington Harbour South, MD
Don, I found the same manual (and many other Racor technical docs) online, but I was either missing where it called out the drain valve nipple size, or it wasn't there. Did you see something I didn't?
 
Jul 25, 2009
270
Catalina 1989 C30 Mk II Herrington Harbour South, MD
Welp, if anyone else cares, a 9/32" ID hose fit snugly but not too tight to easily slide on and off.