Bosch UltraClarity® Pro Water Filter BORPLFTR55 (11032531)

A genuine Bosch OEM replacement water filter for select Bosch refrigerators. The BORPLFTR55 (Bosch part 11032531) is built for the water and ice dispenser, and it is also the correct filter for matching Gaggenau (RA450022) and Thermador (REPLFLTR55) models. Replace it every 6 months, or when your refrigerator's filter light comes on.

Quick facts

• Part number: BORPLFTR55 / 11032531

• Also listed as: RA450022 (Gaggenau), REPLFLTR55 (Thermador)

• Replaces: BORPLFTR50, 11025825, 12028325, 12033030

• Filter life: 6 months or about 250 gallons

• Certifications: NSF/ANSI 42, 53, and 401

• Install: tool-free twist-in

• Free shipping within the USA

Product Overview

The UltraClarity Pro BORPLFTR55 is a carbon-block refrigerator water filter. It sits in the filter housing of compatible Bosch refrigerators and filters the water that feeds your dispenser and ice maker. Bosch lists it as the replacement for the earlier BORPLFTR50, so if your fridge used that filter, this is the part to order.

Frostwaterfilter is an online retailer. We are not Bosch. We sell the Bosch-made BORPLFTR55 as a genuine OEM replacement filter. Bosch, Thermador, and Gaggenau are trademarks of their respective owners, used here only to identify compatible appliances.

Will This Filter Fit My Refrigerator?

It fits select Bosch 500 and 800 series refrigerators with the UltraClarity Pro filter system. Check your model number against the table below, or find it on the rating plate (the sticker inside the fresh-food compartment).

Model suffixes such as /01 or /02 usually belong to the same refrigerator model. Not sure it fits? Email us your fridge model number via our contact page before you order.

Part numbers this filter matches: BORPLFTR55, BORPLFTR50, 11032531, 11025825, 12028325, 12033030, 17005582, 12036454, RA450022, REPLFLTR55.

Watch out for two things:

• If a technician replaced your filter head during a repair, you may need a different filter. Confirm with the manufacturer's support line.

• Older Bosch refrigerators use a different cartridge, such as the Bosch UltraClarity REPLFLTR10. Check the filter you currently have before ordering. You can also browse all Bosch refrigerator water filters we carry.

BORPLFTR50 vs BORPLFTR55: What's the Difference?

Both are UltraClarity Pro filters for the same refrigerators. BORPLFTR55 is the current replacement for BORPLFTR50, so if your fridge used the 50, order the 55. Bosch lists both numbers, along with 11025825, on the same replacement part page.

Product Specifications

Key Features and Benefits

• Genuine OEM fit. Made for Bosch refrigerators, so it seats correctly and seals without a leak.

• Better-tasting water and ice. Reduces chlorine taste and odor.

• Certified reduction. Tested to NSF/ANSI 42, 53, and 401 for the listed claims only.

• No tools needed. Twist off the old one, twist on the new one.

• Simple schedule. One change every six months keeps flow and taste steady.

What Does This Filter Reduce?

Actual results depend on your local water. Check your city's water quality report if you have specific concerns. Read more in our guide on whether refrigerator water filters are good.

How to Install the Bosch UltraClarity Pro Filter

1. Locate the filter in your refrigerator (see your user manual for its location).

2. Turn the old filter counter-clockwise and pull it straight out.

3. Remove the cap from the new filter.

4. Insert the new filter and turn it clockwise until it locks.

5. Run water through the dispenser for about 5 minutes to flush the filter.

6. Reset the filter indicator as shown in your manual.

7. Discard the first batch of ice.

Always follow your refrigerator manual if its steps differ. Dispose of the old filter responsibly. See our guide to recycling refrigerator water filters.

When Should You Replace the Filter?

Replace it:

• Every 6 months

• After about 250 gallons

• When your fridge filter light turns on

• When water flow drops or the taste changes

Whichever comes first. If you're away for long periods, changing by date is still best.

What's Included?

Shipping, Returns, and Support

• Free shipping in the USA. Track your order from our track order page.

• Our shipping and return details are in the policy links at the bottom of this page.

• Questions? Email info@frostwaterfilter.com or call +1 (516) 945-9073 (Mon–Fri, 9 am–5 pm). More answers are on our FAQ page.

Frequently Asked Questions

What does the Bosch UltraClarity Pro BORPLFTR55 replace?
It replaces BORPLFTR50, 11025825, 12028325, 12033030, and matches Bosch 11032531, Gaggenau RA450022, and Thermador REPLFLTR55.

Is this filter compatible with my refrigerator?
Check your model number against the compatibility table above. It's on the rating plate inside the fridge. If it's not listed, contact us before ordering.

Is this a genuine OEM Bosch filter?
Yes. This is the Bosch OEM UltraClarity Pro filter, not a third-party compatible. Frostwaterfilter is an independent retailer and is not Bosch.

How long does the filter last?
Six months or about 250 gallons, whichever comes first.

What does the filter reduce?
Chlorine taste and odor, chloramines, lead, pharmaceuticals, and particulates.

Are BORPLFTR50 and BORPLFTR55 the same?
Both are UltraClarity Pro filters for the same refrigerators. The 55 is the current replacement for the 50.

Do I need tools to install it?
No. It twists in and out by hand.

Do I need to flush the filter after installing it?
Yes. Run water for several minutes and discard the first ice, per your refrigerator manual.

What happens if I don't replace the filter?
Flow slows, taste changes, and the filter stops working as designed. It can't be cleaned or reused.

Can I use this in Thermador or Gaggenau refrigerators?
Yes, in matching models (REPLFLTR55 / RA450022). Confirm your model number first.

Does the filter work with hot water?
No. Use cold potable water only (35–100°F).

Alternate wording if the product is NOT genuine OEM: replace the "Genuine OEM" lines with: "This is a high-quality replacement filter made to fit Bosch refrigerators that use the BORPLFTR55 / 11032531. It is not made by Bosch, Thermador, or Gaggenau. Brand names are used only to show compatibility." Remove "genuine OEM" from the title, intro, specs, and FAQ.

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