Rather unsuitable as a bilge pump
Bought the pump to replace a Rule 500. A few points In order to fix it properly, you should screw the basket underneath, then the pump is clicked into it with a fourth turn. It won't do anything with the hose attached, as everything is too narrow, so click in first, then attach the hose and screw it on. Really stupid. Once it's clicked in, it's extremely difficult to unlock it again. It was all easier with the Rule 500 because it was simply attached from above. But then another crucial point that I have overlooked max. delivery head 1m! This is not to be used for any yacht except for dinghies. After a few attempts, it also pumps up to 112m, but only very weakly. Conclusion I would definitely not buy them again.