This head, complete with mounting bracket, has inlet and outlet ports so that you can connect it in-line upstream of your kitchen tap in your motorhome, caravan or boat. Accepts 3M's high performance HF10 cartridge for filtering down to 0.2 microns.
3M Bypass Plug for AP3 Water Filter head for when filter cartridge is removed
This is a blank 'sanitising plug' which you need to purchase for the 3M AP3 head for your water filter installation. The blanking plug is fitted in place of a cartridge and opens the valve to allow water to flow through to the taps when you want to disinfect your system.
This is because disinfectant solutions would damage the filter cartridge if it was left in place. Once the system has been flushed with clean water the cartridge can be re-installed.
3M E2 Water Filter Kit, High Performance 0.2 micron Anti Bacterial, Cysts