Affiliate disclosure
Plainly, and near the top of every page as well as here.
FilterJug.com is a participant in the Amazon Associates Programme and its international equivalents. We earn from qualifying purchases. Links send you to the Amazon store for your country, and the price shown there at checkout is the one that applies.
In practice: when you click through to Amazon and buy something, Amazon pays us a small percentage of what you spend. It does not change what you pay.
Our links point at amazon.com and Amazon’s OneLink service redirects you to the store for your own country, which is why a reader in Britain lands on amazon.co.uk and one in Germany on amazon.de. The commission follows.
What this arrangement does not do is decide what we recommend. The ranking on every page is by strength of evidence, and the commission rate on a cartridge is the same whichever one you buy — so there is nothing to be gained by pointing you at the wrong one, and a reputation to lose.