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 3MROP412 filter (formerly part # 3MROP414) This is an AutoShip item. For the non-AutoShip version: 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 3MROP412 filter (formerly part # 3MROP414) This is an AutoShip item. For the non-AutoShip version: CLICK HERE
![AUTOSHIP Triple O Original UV Lamp [GOOD] TL01AUTO](https://images.squarespace-cdn.com/content/v1/6300fa0380845d4d49be7409/1704404257479-MZVOH3LE9GHX7PETA9Z0/website+pics+triple+O+lamp.png)
