Bosch Refrigerator B18IF905SP Water Filter with packaging on a white background.

Bosch Refrigerator B20CS30SNS Water Filter

Name: Bosch Refrigerator B20CS30SNS Water Filter
Rating: 5.00 (2 reviews)

Designed for performance, the Bosch B20CS30SNS 20.2 cu. ft. side-by-side refrigerator uses the UltraClarity Pro filter (11032531 / BORPLFTR55 / BORPLFTR50) for reliable, high-quality water filtration.

$40.00 USD $32.99 USD

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The Bosch Refrigerator B20CS30SNS Water Filter helps keep water and ice fresh-tasting by reducing chlorine taste/odor and filtering common impurities. This Water Filter for Bosch Refrigerator model B20CS30SNS in the Bosch 300 Series is designed for a secure fit and a straightforward twist-and-lock change. You can also explore the bosch refrigerator water filter collection when checking replacements. Look for the Bosch Ultra Clarity Pro water filter BORPLFTR55/11032531 part numbers before ordering.

Bosch Ultra Clarity Pro B20CS30SNS Refrigerator Water Filter helps keep your fridge ready for a cool glass of water or fresh ice. Check the NSF/ANSI information for specific filtration standards and certified claims, and plan to replace the cartridge every 6 months to stay on schedule.

Bosch UltraClarity Pro water filter (11032531) is listed for the Bosch B20CS30SNS refrigerator.

Bosch Model B20CS30SNS UltraClarity Pro water filter cartridge and its blue retail box, shown next to a refrigerator icon on a light blue gradient background with text overlays.

Key Features

Powerful Filtration – Reduces chlorine, odor, and bad taste for cleaner water.
Bosch Compatible Fit – Designed for Bosch Ultra Clarity Pro refrigerator models.
Easy Installation – Quick twist-and-lock replacement, no tools needed.
Clear Ice & Fresh Water – Improves dispenser water and ice quality.
6-Month Filter Life – Long-lasting UltraClarity Pro water filter cartridge.
OEM Quality Design – Secure fit for Bosch B20CS30SNS 300 Series and more.

Specifications

Part Number: 11032531
OEM Part Number: BORPLFTR55, BORPLFTR50, 12033030, RA450022, REPLFLTR55
Brand: Bosch (UltraClarity Pro Series)
Type: Refrigerator Water Filter Cartridge
Dimensions: Approx. 9.5 x 2.0 x 2.0 inches
Weight: Approx. 0.75 – 1 lb
Color: White

Our Replacement Water Filters Are NSF Certified To Reduce 99% Contaminants

Hg

Chlorine

Cl

Mercury

Pb

Lead

Pesticides

Herbicides

Pharmaceuticals

See which water and air filters are compatible with your refrigerator.

Find Compatible Models

When to Replace Your Water Filter

Every 6 Months or 200 Gallons

Most refrigerator water filters are designed to last approximately 6 months or filter up to 200 gallons of water — whichever comes first.

When Your Fridge Displays a Filter Alert

Modern LG, Samsung, Whirlpool, and Frigidaire refrigerators have built-in filter indicators that notify you when it's time for a replacement.

Changes in Taste, Odor, or Flow

A drop in water pressure, an unusual taste, or an off smell from your dispenser are clear signs your filter is overdue for a change.

Compatible Model Numbers

UltraClarity Pro water filter (11032531 / BORPLFTR55 / BORPLFTR50) is designed to fit select Bosch refrigerators, including but not limited to the following models:

B20CS30SNS, B22CS30SNS, B26FT70SNS, B36CL80ENS, B36CL80SNS, B36CL81ENG, B36CT80SNS, B36CT80SNB, B36CT81SNS, B36CD50SNS, B36CD50SNB, B36FD50SNS, B36BT935NS, B36IT905NP, B30BB935SS, B30IB905SP, B18IF905SP

Frequently Asked Questions

Q: Are UltraClarity Pro and UltraClarity the same filter?
No. UltraClarity Pro (11032531 / BORPLFTR55 / BORPLFTR50) is different from the older UltraClarity filter. Always check your refrigerator model before buying.

Q2: Is 11032531 the same as BORPLFTR55?
Yes. 11032531, BORPLFTR55, and BORPLFTR50 are interchangeable part numbers for the UltraClarity Pro water filter.

Q3: How do I know if my Bosch fridge uses UltraClarity Pro?
Check the existing filter inside your fridge or confirm your refrigerator model number in the user manual.

Q4: How long does the UltraClarity Pro filter last?
It typically lasts up to 6 months or 300–400 gallons, depending on water quality.

Q5: Why is my Bosch water filter light still on after replacement?
You may need to manually reset the filter indicator by holding the reset button for a few seconds (check your manual).

Q6: Does the UltraClarity Pro filter remove lead?
It reduces chlorine taste and odor and other common impurities. Check NSF certification details for specific contaminant reduction claims.