Alerts: price moves of 5%+ and wording changes, Water filter costs checked daily: what each gallon of filtered water costs you | CentsPerGallonOnly the big ones: every price that moved 5% or more, and every wording or rule change, from https://centspergallon.com/data/filter-costs/https://centspergallon.com/Aquasana Claryum 2-Stage Under-sink 2-stage, system price: $249.99 to $124.99 (-50%)https://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-claryum-2-stage-under-sink-2-stage-system-pricehttps://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-claryum-2-stage-under-sink-2-stage-system-priceAquasana Claryum 2-Stage Under-sink 2-stage (system price) moved from $249.99 to $124.99 on 2026-10-23. <a href="https://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-claryum-2-stage-under-sink-2-stage-system-price">See it in the daily log at https://centspergallon.com/data/filter-costs/</a>Fri, 23 Oct 2026 12:00:00 GMTAquasana Claryum 2-StageAquasana SmartFlow RO Under-sink RO with tank, system price: $449.99 to $224.99 (-50%)https://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-smartflow-ro-under-sink-ro-with-tank-system-pricehttps://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-smartflow-ro-under-sink-ro-with-tank-system-priceAquasana SmartFlow RO Under-sink RO with tank (system price) moved from $449.99 to $224.99 on 2026-10-23. <a href="https://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-smartflow-ro-under-sink-ro-with-tank-system-price">See it in the daily log at https://centspergallon.com/data/filter-costs/</a>Fri, 23 Oct 2026 12:00:00 GMTAquasana SmartFlow ROAquasana Rhino Whole house, 10-year tank, system price: $1,998.00 to $999.00 (-50%)https://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-rhino-whole-house-10-year-tank-system-pricehttps://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-rhino-whole-house-10-year-tank-system-priceAquasana Rhino Whole house, 10-year tank (system price) moved from $1,998.00 to $999.00 on 2026-10-23. <a href="https://centspergallon.com/data/filter-costs/#change-2026-10-23-aquasana-rhino-whole-house-10-year-tank-system-price">See it in the daily log at https://centspergallon.com/data/filter-costs/</a>Fri, 23 Oct 2026 12:00:00 GMTAquasana Rhino