Does this fit the culligan wh-hd200

Hello. Yes, this is the o-ring for the Culligan WH-HD200-C.

Does this ring fit with the rfc-bbsa filters?

Hello. The rfc-bbsa, is a filter cartridge that goes inside of a filter housing. Do you know he make/model of your filter housing (the plastic housing that screws into the filter head/cap)? If you know the make/model of the housing, we can determine the o-ring that is compatible with it.

What is the correct ring for Pentek 150237, it is not listed in your user guide?

Hello. The 151122 o-ring is the o-ring used in the 150237. You can find it at the link here: https://www.amazon.com/dp/B019Y85PR6

should i use a little oil on these?

I needed them for my water filtration system, and no oil was needed.

Or 250 Filter O Ring 3 Pack Replacement For Culligan

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

💧 Seal the deal with confidence — never let a drip cramp your flow!

CERTIFIED SAFE SEAL - Crafted from NSF 61 certified Buna-N rubber for clean, safe drinking water every time.
PROUDLY USA ASSEMBLED - Quality you can trust, assembled in the USA with a warranty backing your peace of mind.
PRECISION FIT GUARANTEE - Designed to perfectly fit popular models like Culligan WH-HD200-C and 3M AP801B/T housings.
TRIPLE PACK RELIABILITY - Keep your water filter leak-free with three durable O-rings ready when you need them.
UNIVERSAL COMPATIBILITY - Works seamlessly with top brands including DuPont, Hydronix, Watts, and iSpring for hassle-free replacements.

Captain O-Ring OR-250 is a 3-pack of high-quality replacement filter O-rings made from NSF 61 certified Buna-N rubber, designed for a precise 5.5" inside diameter and 5.88" outside diameter. Compatible with a wide range of popular water filter housings including Culligan WH-HD200-C, 3M AP801B/T, DuPont, Hydronix, Watts, and iSpring models. Proudly assembled in the USA, these O-rings ensure a reliable, leak-free seal to maintain clean and safe drinking water.

Specifications

ASIN	B074THDBQ2
Best Sellers Rank	#88,815 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #49 in Undersink Water Filtration Replacement Parts
Brand	Captain O-Ring
Brand Name	Captain O-Ring
Color	black
Customer Reviews	4.7 out of 5 stars 283 Reviews
EU Spare Part Availability Duration	1 Years
Item Diameter	5.5 Inches
Manufacturer	Captain O-Ring LLC
Material	Buna-N Rubber
Material Type	Buna-N Rubber
Model	OR-250
Nominal Inside Diameter	5.5 Inches
Nominal Outside Diameter	5.88 Inches
Number of Pieces	3
Part Number	OR-250
Set Name	3-pack
UPC	611138349659
Unit Count	3.0 Count

Reviews

P**E

5.04.2026

H**.

6.03.2026

P**.

29.12.2025

J**N

1.04.2026

A**R

6.01.2026

R**H

19.04.2026

V**.

25.10.2025

B**R

24.07.2023

K**O

1.02.2025

C**T

9.05.2019

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