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

Bosch Refrigerator B20CS30SNS Water Filter

1 Pack
$32.99 USD $40.00 USD
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Bosch Refrigerator B18IF905SP Water Filter with packaging on a white background.
  • Bosch Refrigerator B18IF905SP Water Filter with packaging on a white background.
  • UltraClarity Pro Bosch Refrigerator B18IF905SP Water Filter cartridge with a white cylindrical body, blue label, and dual O-ring connector end.
  • Bosch UltraClarity Pro B18IF905SP refrigerator water filter cartridge, white cylindrical design with blue label and twist-lock handle end.
  • B18IF905SP Water filter cartridge showcasing coconut shell activated carbon filtration, food-grade, BPA-free, and lead-free design with coconut illustration.
  • Bosch UltraClarity Pro B18IF905SP refrigerator water filter infographic showing NSF certification, 200-gallon capacity, and compatibility with Bosch, Thermador, and Gaggenau.
  • Bosch Refrigerator B18IF905SP Water Filter UltraClarity Pro Filtration Infographic
  • Hand-installing UltraClarity Pro water filter B18IF905SP inside the refrigerator with a twist-and-lock mechanism; fresh food items are visible on shelves.
Bosch Refrigerator B20CS30SNS Water Filter

Bosch Refrigerator B20CS30SNS Water Filter

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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Enjoy crisp, refreshing water straight from your fridge with the Ultra Clarity Pro water filter Bosch refrigerators trust. Designed for superior performance, the Ultra clarity pro water filter Bosch system reduces chlorine, odor, and bad taste, giving your family cleaner water and clearer ice every day.

This genuine Bosch B20CS30SNS Water Filter replacement fits models like the Bosch B20CS30SNS 500 Series and other units that use the UltraClarity Pro water filter cartridge (11032531 / BORPLFTR55 / BORPLFTR50). Easy to install and built for reliable filtration, it’s the simple upgrade your refrigerator needs for better-tasting water.
Bosch Refrigerator B18IF905SP Water Filter with packaging on a white background.

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

Person marking calendar in kitchen

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.

Fridge control panel

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.

Person sniffing water with concern

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.

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