Pentair Dynamo Discrepancy


LifeTime Supporter
Jul 31, 2009
NW Ohio
I'm looking to get a Pentair Dynamo 2 speed, and I saw this picture and I notice there is a male npt for the output.

Then I ran across this drawing of the dynamo pump and I notice there's a female npt for the output.

Can someone who owns one actually confirm which it is?
If it is a male, can someone point me to the proper adapter to hook a hose up to it? I can't seem to find one. Or maybe I'm looking right at it, and still can't see it.



LifeTime Supporter
Nov 12, 2009
Indialantic, FL
Don't own one, but saw one in a local strore - had the male threads on the outlet like your photo, but it also had a threaded collar that fit those threads. Looked like it was designed to tighten some sort of a flanged output line (or maybe an O-ring?).


TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
Silver Spring, MD
It is threaded on both the inside and the outside. The inside is standard NPT 1.5". The outside is something else, designed to go with a special Pentair union connector.

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