The dark knight
Member
Which ones would be better on a fluval Roma 4ft 240ltr?
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What the difference between the wp and RW?
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I agree with Dave and Pat .!
A pair of WP25's, is going to be better than a single wp 40. Pair of 40's may be too much, and they are large pumps, the 25's are much less intrusive and have tons of flow.
To Pats point, I just switched from a pair of WP, to a pair of RW series, and I really like the RWs better.
They don't pivot, ball style like the WPs, but are sufficient. Better flow style and control with RW also.
I'm not sure how longevity will compare, they are still new to the market, and they are cheap. I wouldn't expect either to last a lifetime.
Edit,
my RWs I bought on Amazon were listed under "Jecod" brand.
Two rw8 is too much .
I had two WP25s in my 65g, and had to keep them on low because they are too much.
I'm thrilled with the RW4 pair I have now because I can use the full range of flow.
A friend at work here has one ea 4 & 8 on his 65, and he can't sync them because even on half power the 8 is still too much and just overpowers the flow from the 4.