No. 13 in detailed image drawing.
***Note there are 2 versions of this item. New style and old style. Please double check measurement on hose connection before ordering. See detail images for size.****
Connects M-8823113 - 3 inch Mueller Milk tank valve to M-8825995 quick connect
Replacement o-ring part number M-8801962
M-8825995 New Style Quick Connect
M-8826008 Adapter connects to Mueller M-8823113 -3 inch milk tank valve (this item)
M-8826007 Adapter connects to Mueller M-90601 -2 inch milk tank valve
Made in USA by Paul Mueller Co