This is my review on these pumps so far and I'm not traying to bash the vortech pumps, vortech pumps are excellent but just to pricey.
On my tank I'm running three vortech mp40 's which was not enough flow for my sps's so I got two of these wp - 40's and wow! that's all I can say. They are quite big and punch out a lot of flow way more than the mp40's
With the extra rubber housing on the magnet side and on the pump side no vibration noise noticed yet and runs silent, even more than the vortech mp40's. The extra rubbers also works as suction cups. The flow of these also extends further in my tank than the vortech's which is 1.5 m in length.
The controller is excellent and very user friendly with a lot of wave settings. Waiting for my wp-40 cables for the reef angel controller, then I won't need the original controllers that came with the pumps anymore.
I'm very happy with these pumps which doesn't cost an arm and a leg and I'm going to get the wp-25 for my frag tank as well.