How to Replace the Bosch Ultra Clarity 9000194412 Water Filter

If your Bosch refrigerator's water is tasting a little flat or the dispenser has slowed down, it's probably time to change the internal water filter. The Bosch Ultra Clarity 9000194412 is the standard replacement filter for most Bosch, Thermador, Siemens, and Neff refrigerators sold in the U.S., and swapping it takes just a couple of minutes with no tools required.

About the Bosch Ultra Clarity 9000194412

The Bosch Ultra Clarity is an internal refrigerator water filter designed to reduce the taste and odor of chlorine while delivering cleaner, better-tasting water and ice. It's sold under a long list of part numbers depending on the retailer and model year, including 9000194412, REPLFLTR10, BORPLFTR10, 644845, 740560, 740570, and EFF-6025A, among others. If you see any of these numbers on your current filter, the Ultra Clarity is the correct match.

Note: This filter is not the same as the newer "UltraClarity Pro" line (BORPLFTR50/55, REPLFLTR50/55) — check your existing filter's number carefully before ordering.

Replacement Frequency

Bosch recommends replacing the Ultra Clarity filter approximately every 6 months under normal household use. Replace it sooner if you notice reduced water flow, a change in taste or odor, or if your model's filter-change indicator has activated.

Step-by-Step Guide

1. Find the filter housing. On most Bosch refrigerators, the filter is located in the upper right or upper back corner of the fresh food compartment, sometimes behind a small access panel.
2. Turn the control dial (if your model has one) to the "off" or "change filter" position before removing the cartridge — this reduces water spillage.
3. Twist the filter counterclockwise about a quarter turn and pull it straight down and out of the housing.
4. Unwrap your new Ultra Clarity filter and remove any protective caps or seals.
5. Insert the new filter into the housing, lining up the guide notches, then twist clockwise until it clicks and locks into place.
6. Turn the dial back to "on" and flush the system by dispensing 2–3 gallons of water before drinking it, which clears out air and loose carbon particles from the new filter.

Compatible Bosch, Thermador, Siemens & Neff Models

The Ultra Clarity fits a broad range of appliances, including the Bosch B22CS30SNS, B22CS50SNS, B22CS80SNS, and B26FT70SNS series, as well as the Bosch Evolution 500 and 800 Series and KAD62 Series. It's also the correct filter for the Siemens KA62 Series, the Neff K5930 and K5920 Series, and Thermador freezers and freezer columns in the T181, T241, and T301 model families. If you're unsure whether your model matches, compare the part number on your existing filter rather than relying on the model number alone.

Shop at Fine Filters

Pick up a genuine Bosch Ultra Clarity 9000194412 Water Filter at Fine Filters and keep your refrigerator's water and ice tasting the way it should.