Easy to fit however could do with labelling contacts or instructions had to try several combinations to get right.
Also you will need to install separate earth the old one had a steel body which was directly earthed through the body of the tank.
One last thing don’t forget to purchase new gasket and fixing ring.
good but be prepared to modify which is easy enough to do.
found that the filter was hitting the bottom of the tank which didnt allow the body to fit flush to the tank I ended up cutting 25mm off the end of the tube .