What Every Gallon of Filtered Water Really Costs You, Filters and Membranes Includedhttps://centspergallon.com/https://centspergallon.com/ro-membrane-replacement-cost-when-to-swap-it-and-what-drives-price/https://centspergallon.com/ro-membrane-replacement-cost-when-to-swap-it-and-what-drives-price/Aquasana's SmartFlow RO membrane is $62.99 and lasts 12 months; its carbon pair costs $183.98 a year. APEC and iSpring sets compared, plus the TDS check.Thu, 22 Oct 2026 00:00:00 GMTCost per gallonhttps://centspergallon.com/whole-house-reverse-osmosis-published-prices-space-needs-and-upkeep/https://centspergallon.com/whole-house-reverse-osmosis-published-prices-space-needs-and-upkeep/Whole-home RO adds a tank, pump and pretreatment. Price it against kitchen RO at $224.99 to $579.99, then EPA's well tests and a 7-step checklist.Thu, 22 Oct 2026 00:00:00 GMTWhole househttps://centspergallon.com/whole-house-water-filter-systems-add-on-prices-and-filter-change-schedules/https://centspergallon.com/whole-house-water-filter-systems-add-on-prices-and-filter-change-schedules/Aquasana's three priced whole house add-ons list at $3,394 to $3,494, more than the $1,998 Rhino; pre-filters add $73.98 a year. Plus EPA well tests.Thu, 22 Oct 2026 00:00:00 GMTWhole house