But this if you need it but do check connections before ordering.
A product designed to fit a Waterpik. Nothing much can really go wrong. As there are several different connectors make sure that you order the right one. I had to try twice- my fault for not checking carefully before ordering.
Do not buy this charger, it has damaged my waterpik beyond repair and could of burnt my house down. As you can see form the picture it has melted it. Absolutely disgusting. So mad, people really don't care about other people's safety.
It seems to charge ok. No indication of full charge but then neither does the WaterPik WP-450UK!! It gets slightly warm and is not a particularly robust construction. Expensive for it’s build quality!