This engineered filter system includes the 4 NSF labeled filters: sediment, pre carbon, UF (ultrafiltration), and post carbon. Also included are all parts needed for a complete tap water filtration system: quick no tool fittings, water tubing, shut off valve, T supply connector, 4 filter bracket for mounting, and a dedicated faucet.
The undersink filter system can be installed with quick connect / disconnect fittings to swap between home and RV camper or boat.
Add the RV Swap kit if you want a dual installation: https://www.wholesalewatercooler.com/product/rv-swap-kit/
Add a refrigerator kit to supply the filtered water to the refrigerator. (https://www.wholesalewatercooler.com/product/refrigerator-water-filter-kit/)