Hydor deflectors

[canadawest]

Originally Posted by AndyL

There's a big plastic ring on the back side of the nozzle housing - it's intended as a mount for a foam biofilter (freshwater applications). 99% of saltwater folks will trim it off leaving just the bullet shaped nozzle.

Why bother with it in a saltwater application? Mine is bone stock, the ring has no effect on the performance of the unit, on or off I suspect.

Except for looking a bit gawdy, it's really of no consequence leaving it as is.