It's a three piece whole house filter, head, housing, & filter, not the one piece RV filters sold at CW. My filter has standard hose fittings on the input and output. Connect hose from tap to input of filter head, connect another hose from filter head output to RV Fresh Water fill. Now put bleach in the filter housing (while upside down, the housing, not you), while still holding the housing upside down, thread it on to the filter head, once tight turn on the tap and let it run for a while.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top