I'm not aware of whole house systems as you only generally take drinking water from the kitchen taps, so you can either fit a side tap like linked or one that feeds into the main sink tap. You only need to change the filter each 6-12 months. I've found it far less FAFF than a jug. It is a little slow compared to the main tap but it's an acceptable a trade off.
https://www.wickes.co.uk/BWT-Inline-Drinking-Water-Filter-Kit/p/149680