Water Sentinel WSB-1 Bosch 640565 / CS-52 Compatible Filter

Made in USA
List Price: $35.00 Our Price: $17.99 Save: $17.01!
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Replace every 6 months
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  • Product Overview
  • Specifications

The WSB-1 has been discontinued and replaced with CS-52. CS-52 is compatible with any refrigerator that uses WSB-1 and is NSF-certified.

The WaterSentinel WSB-1 replacement filter is an alternative/compatible filter for the Bosch 640565 or 3M CS-52 refrigerator water filter.

The WSB-1 fits any refrigerator that currently uses the Bosch 640565 or 3M CS-52.

The WSB1 fridge filter is also compatible with the following part numbers and refrigerators:

Bosch (part numbers)
  • 640565
  • CS-52
  • 1257074
  • AP3961137
Bosch (refrigerators)
  • Evolution 500 Series (B20CS50SN)
  • Evolution 800 Series (B20CS80SN)
  • EVOLFLTR10 filtration systems
  • Filter Life: 6 months or 400 gallons (whichever comes first)
  • Flow Rate: 0.5 gallons per minute
  • Operating Temperature: 33-100°F
  • Country of Origin: Made in USA