NOT an effective replacement part.. Doesn't work right.
I bought this replacement handle, because it would have cost almost twice as much to buy an original Waterpik brand replacement.  Although other reviewers said it was a problem, I didn't see how the water flow could be that much less.. Now I SEE!! It's like you've set your Waterpik pressure on 1 and that's as high as it will go.. It's a trickle and barely flows, and my Waterpik is set on 10.  It takes twice as long (or longer) to empty the tank with this nozzle, because the flow is so low.<br /><br />Additionally, the swivel action of the mouthpiece in the handle doesn't work right. You can turn the holder, but the pik itself doesn't turn when you spin the handle control.  There's no point in having a spinning handle control, if it doesn't turn the mouthpiece itself.<br /><br />I've definitely wasted my money by trying to save money with this replacement product, and am afraid the back pressure might actually ruin my machine. Only a refund could make this bad purchase better!
Rating: 1 stars