The Series 2000 Pro Flow Hose Ends differ from the Series 3000 Hose Ends in
the fact that they feature the "single nipple" method of hose attachment. With
the "single nipple" style, the socket draws the hose over a long tapered single
nipple. The sealing feature is the crush of the hose between the inside of the
socket and the outside of the nipple. With this style of hose end, reusing it is
a breeze. There is no sliver of cut hose to remove before reinstalling the hose
end on a new piece of hose.