# Affiliate Disclosure

> WaterGradePro's affiliate disclosure: we may earn commissions from Amazon and other retailers at no extra cost to you, and they never decide our picks.

Source: https://watergradepro.com/affiliate-disclosure/
Updated: 2026-11-13

---

WaterGradePro is free to read. When you buy a product through some of our links, we may earn a commission at no extra cost to you. Those commissions, and ads if we add them, pay for the Site.

## Amazon Associates Program

WaterGradePro is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

**As an Amazon Associate I earn from qualifying purchases.**

## Other affiliate programs

We may also join affiliate programs run by water treatment manufacturers and other retailers, directly or through affiliate networks. They work the same way: if you click a link and buy, the seller may pay us a commission. The price you pay doesn’t change.

## How we mark affiliate links

Articles that contain affiliate links say so near the top, before the first link. Product boxes and buttons that take you to a retailer, such as Amazon, are affiliate links.

## How this affects our recommendations

It doesn’t. We choose and rank products by independent certification, such as NSF/ANSI standards, and by the specifications the manufacturer publishes, not by commission rates. We don’t publish made-up test results, fake reviews or invented testimonials, which the FTC’s [rule on consumer reviews and testimonials](https://www.ecfr.gov/current/title-16/chapter-I/subchapter-D/part-465) prohibits. No company can pay to be included, to rank higher or to review an article before it is published. If the best option for a reader isn’t part of any affiliate program, we still recommend it.

## Sponsored content and free products

We don’t publish sponsored articles. If that ever changes, or if a company sends us a product for free, the article will say so clearly at the top. This disclosure follows the Federal Trade Commission’s [Guides Concerning the Use of Endorsements and Testimonials in Advertising](https://www.ecfr.gov/current/title-16/chapter-I/subchapter-B/part-255).

## Questions

Questions about how we work with retailers and manufacturers: [contact@watergradepro.com](mailto:contact@watergradepro.com).