* 316UP, Upgrade Kit for RO system 20 gal/day (includes the US Membrane filter)
* This is a Upgraded CTA US Membrane filter, our part no. 316, 16 - 20 gal/day and a upgrade kit, part no. 115.
* You can upgrade your RO system to a 20 gal/day RO system by replacing to larger capacity membrane and flow restrictor. The result is that the system produces water much faster and the membrane last longer.
* The Rotek System is a 10 gal/day system.