Reverse Osmosis Systems

Ultima VI 4-Stage RO Compatible Replacement Filters

The Ultima VI is a standard, four-stage, undersink reverse osmosis system. This system uses two drop-in cartridge pre-filters, an RO membrane and an inline post-filter. See below for the compatible replacements.

Replacement Filter Info

Sediment Filter (93023) - Replace every 6-12 months or as needed

Carbon Block Filter (OMB934-5M) – Replace every 6-12 months or as needed

RO Membrane TFC 50 GPD (555694-00) – Replace every 24 months or as needed

Carbon Block Filter (CL10ROT33-BB) – Replace every 6-12 months or as needed

Helpful Filter Information

Not all filters have the same replacement schedule. Replace the RO membrane filter every two years. Replace all other filters every 6-12 months. Help keep your system sanitary by never using filters longer than 12 months, except the RO membrane filter, regardless of how much water you use.

Filter Replacement Schedule

We’ve taken the guesswork out of replacing your filters. Begin a filter replacement cycle by replacing all filters on your system (Filter Kit "YSM"). The following year, or sooner if recommended by the manufacturer, replace all filters except the RO membrane (Filter Kit "YS"). Repeat this cycle by following the helpful diagram below.