1/2 HP whisperflow...can someone confirm length?


LifeTime Supporter
Aug 19, 2014
Pacific NW
Long story short I need a confirmed length from motor to wet end.

Found a good deal on amazon but they're showing it as 28.5 inches long. Another place says 24.5

That's all I have room for.

Anyone with 1/2 HP model can confirm?

Also the service factor is 1.5
Should be plenty for eventual solar heating yes?


TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Feb 13, 2012
Phoenix, AZ
Pentair's website confirms that the length is 24.469" for the 1/2 hp WhisperFlo. Hopefully this helps!

whisperflo length.jpg