Marine/RV iron filter and softener combo uses portable 2

https://zanegebd461.lucialpiazzale.com/best-iron-filter-for-high-iron-levels-why-softpro-excels

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.