Saving water website

I received some information about saving Water and money from this website: https://www.savewatersavemoney.co.uk/ and received some free equipment to reduce the amount of water in a toilet flush. As far as I can tell they aren't a charity or a non-profit organisation, but their principles are fair and they have worked with Charity partners like the Gorilla organisation. Therefore on an individual basis I recommend looking into their products and from a wider perspective perhaps some collaboration could prove useful? I'd just like to add I am in no way affiliated with this company and am not trying to do marketing or something like that for them