Description
Product Overview
The Culligan OR-233 is a high-quality rubber O-ring measuring 3 inches in nominal inside and outside diameter, crafted from Buna-N material for durability and reliable sealing. This O-ring is specifically designed to seal the housing sump to the housing cap in water filtration systems, preventing leaks and ensuring efficient operation. Key specifications include a part number OR-233, item weight of 0.32 ounces, and compatibility with models such as US-600A and SY-2650. It is part of a 3-pack set, with a unit count of 1.0, and is certified as an O-ring for housing applications, supporting water consumption up to 1,000,000 gallons. Manufactured by Culligan, a trusted brand in water treatment solutions, this O-ring meets industry standards for performance and longevity.

Usage
The Culligan OR-233 O-ring is ideal for use in residential and light commercial water filtration systems, particularly with Culligan models US-600A and SY-2650. It is commonly employed in environments where preventing leaks between the housing sump and cap is critical, such as under-sink filters, whole-house filtration units, and reverse osmosis systems. Homeowners, DIY enthusiasts, and professional plumbers will find this O-ring essential for maintenance tasks, ensuring a tight seal that withstands water pressure and environmental factors. Regular replacement every two filter changes or upon signs of damage helps maintain system efficiency and prevents water wastage, making it a reliable choice for routine upkeep.
Why Choose Us
Choosing the Culligan OR-233 O-ring means opting for a product backed by Culligan’s reputation for quality and innovation in water filtration. The Buna-N rubber material offers excellent resistance to wear, compression set, and common chemicals, ensuring a long service life even under demanding conditions. This O-ring is precision-engineered to fit seamlessly with specified models, reducing the risk of installation errors and leaks. Additionally, it comes with a warranty for added peace of mind, and its competitive pricing at $6.33 provides great value without compromising on performance. Trust in a brand that prioritizes reliability and customer satisfaction for all your sealing needs.
Key Features
- Durable Buna-N rubber construction for long-lasting leak prevention.
- Precise 3-inch diameter ensures a secure fit in housing assemblies.
- Compatible with Culligan US-600A and SY-2650 models for versatile use.
- Easy to install and replace, saving time during maintenance.
- Certified for housing applications, supporting high water consumption up to 1 million gallons.
FAQ
What models is the Culligan OR-233 O-ring compatible with?
The Culligan OR-233 O-ring is designed for use with models US-600A and SY-2650, ensuring a proper seal in those specific water filtration systems.
How often should I replace this O-ring?
It is recommended to replace the OR-233 O-ring every two filter changes or immediately if you notice any damage, such as cracks or deformities, to maintain optimal performance.
What material is the O-ring made from?
This O-ring is constructed from Buna-N rubber, which provides excellent durability and resistance to compression, making it suitable for long-term use in water filtration environments.
Does this O-ring come with a warranty?
Yes, the Culligan OR-233 O-ring includes a warranty, offering assurance against defects in materials and workmanship under normal use conditions.
Can I use this O-ring for other applications beyond water filters?
While it is certified for housing applications in water filtration systems, it may be suitable for other sealing needs with similar diameter and material requirements, but always verify compatibility to avoid leaks.





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