Replacement for the 3M 4 vessel units. #3 or 4 Filter
Everyone needs this filter whether you have a 3-vessel or 4-vessel system. This is your #3 or 4 post-carbon filter.
Compatible for the 3MROP416 filter (formerly part # 3MROP414)
Want to have this AUTO-SHIPPED once a year? CLICK HERE
Replacement for the 3M 4 vessel units. #3 or 4 Filter
Everyone needs this filter whether you have a 3-vessel or 4-vessel system. This is your #3 or 4 post-carbon filter.
Compatible for the 3MROP416 filter (formerly part # 3MROP414)
Want to have this AUTO-SHIPPED once a year? CLICK HERE
