Quote:
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.
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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.