I have shopped with Pozzani for a couple of years. I mainly rely on them for drinking water filtration as my water is fed from a stream. However, since they have proved reliable my shopping cart has extended to fridge filters and water jug filters. I have never had a problem -even during lockdown- and if a product is temporarily out of stock a suggested replacement is offered. I find their reminder system useful and obviously since they would prefer you to buy from them it is not pushy.
Overall a great company to deal with and I recommend them constantly to friends and family