Does anybody know if....

[DannyBoy17]

Does anybody know if the "Powerhead 402" (Hagen I believe) has flow control?

DB

 

[The-Wolf]

yes it does

 

[DannyBoy17]

yes it does

Does it have to do with the green and yellow bar things?

DB

 

[Opcn]

I believe that its the Yellow Bar, that it moves a disk attached to the bottom and moves an opening over another, or off of another depending on position.

Have a manual?

 

[The-Wolf]

you should find the manual on this link
http/www.hagen.com/uk/aquatic/manual.cfm