CunoOCS CS-52 Bosch Refrigerator Water Filter

The Bosch Refrigerator Water Filter CS-52 by CunoOCS fits refrigerators using the Series CS-450 Sanitary Quick Change filter system.

The filter is approximately 2 1/2 inches in diameter and 8 1/4 inches high.

The Bosch CS52 Replacement Refrigerator Filter removes the following impurities from your drinking water:

• 86.0% of Chlorine
• Sediment

As with all built-in refrigerator water filters, the CS-52 does not remove Fluoride

The CS-52 cartridge is tested and certified by NSF International to meet or exceed NSF/ANSI Standard 42

The Bosch CS52 by Cuno OCS should be replaced every 6 months - sooner if you notice an objectionable taste in your water or ice.

Installing your new water filter:

1. Disconnect the refrigerator water supply and unplug the refrigerator
2. Push the button at the top of the filter case and remove the case from the compartment
3. Twist the old filter a quarter-turn counterclockwise
4. Pull the filter straight out and discard
5. Remove the protective cap from the new filter
6. Push the new filter into the fridge until it stops
7. Twist the new filter a quarter-turn clockwise
8. Replace the filter case back into the compartment
9. Reconnect the refrigerator water supply and plug the refrigerator back in

There's nothing in the CS52 filter that can go bad, so it has No Expiration Date... It can live on your shelf for years.

For that reason, it makes sense to Buy In Bulk... You pay less money per filter, and we pay for shipping!

"How can I tell when it's time to change my filter?"

Like most refrigerator water filters, the Bosch CS-52 should be replaced approximately every six months. However, if you ever notice a funny taste or smell in your ice or water, please immediately replace the water filter!