Affiliate disclosure
Some links are affiliate links: we may earn a commission at no extra cost to you. It never changes our scores.
Last updated November 9, 2026
Where the buy buttons go
Every "Check price at …" button goes to the brand's own US store or product page (Aquasana, SpringWell, Waterdrop, iSpring, SoftPro, US Water Systems). Some of these brands run affiliate programs. When a button is an affiliate link, it carries an "Affiliate link" label and a sponsored attribute, and you pay the same price as without it.
Why a commission cannot move a score
- The published formula has no input for commissions.
- Systems from brands without an affiliate program stay in the rankings, at the place the formula gives them.
- Our scores come from manufacturer data, published prices and the formula on the methodology page.
What we never do
- Sell placements, sponsored reviews or "best of" spots.
- Publish fake reviews, star ratings or promo codes.
- Invent a deadline or a discount: when we mention a sale, it is one the brand showed on the date we checked.
Questions
Write to contact@whole-house-filters.com. Whole House Filters is published by Mint Technology LLC; see the legal notice.