Marine/RV iron filter and softener combo uses portable 2

https://andreuxci478.wpsuo.com/iron-filter-system-101-what-it-is-how-it-works-and-why-you-need-one

Marine/RV iron filter and softener combo uses portable 2.5x10 cartridges, polyphosphate, and carbon block; quick-disconnect hose fittings, brass Y-strainer, and onboard TDS meter optimize campground well water for appliances.