Marine/RV iron filter and softener combo uses portable 2

https://telegra.ph/Installation-Tips-for-Your-Iron-Filter-System-Avoid-These-Common-Mistakes-04-03

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.