O-RING for Slim Line Housing and Rainfresh (151121)

Description

The O-Ring for Slim Line Housing & Rainfresh® is a high-quality replacement sealing gasket designed to restore a watertight seal in compatible Slim Line water filter housings. Replacing a worn, cracked, or flattened O-ring helps prevent leaks and ensures your filtration system operates safely and efficiently.

Manufactured from durable, potable water-safe rubber, this O-ring is compatible with many standard 10" and 20" Slim Line filter housings, including select Rainfresh® models. It is ideal for routine maintenance during filter cartridge changes.

Key Features

• Leak-Free Seal: Restores a secure, watertight seal between the housing sump and cap.
• Compatible with Slim Line Housings: Fits many standard 10" and 20" Slim Line filter housings.
• Rainfresh® Compatible: Suitable for many Rainfresh® Slim Line filter housing models.
• Durable Construction: Made from high-quality rubber for long service life.
• Potable Water Safe: Suitable for residential drinking water filtration systems.
• Easy to Replace: Simple installation during routine filter maintenance.
• Helps Prevent Leaks: Replacing worn O-rings helps protect your home and filtration equipment.

Compatibility

The Slim Line Housing O-Ring is compatible with many:

• 10" Slim Line filter housings
• 20" Slim Line filter housings
• Rainfresh® filter housings, UCCSM UCS3 UCS2 UC205M UC203 UC200 RO450 RO450M
• Standard residential water filter housings using the same O-ring size
• Pentair Gro-75

📌 Always compare your existing O-ring dimensions or housing model number before ordering to ensure proper fit.

Specifications

Product Type – Replacement Housing O-Ring

Material – Food-Grade Rubber (Buna-N/Nitrile or Equivalent)

Housing Type – Slim Line

Compatible Housing Sizes – 10" & 20" Slim Line*

Compatible Brand – Rainfresh® and Other Standard Slim Line Housings

Colour – Black

Application – Water Filter Housing Seal

*Compatibility may vary by housing model.

Applications

The O-Ring for Slim Line Housing & Rainfresh® is ideal for:

• Whole-house water filtration systems
• Under-sink water filtration systems
• Sediment filter housings
• Carbon filter housings
• Reverse osmosis pre-filtration
• UV system pre-filtration

It helps maintain a proper seal and prevents water leaks during normal system operation.

Maintenance

For best performance:

• Inspect the O-ring during every filter change.
• Replace the O-ring if it is cracked, flattened, stretched, or damaged.
• Clean the O-ring groove before installing a new seal.
• Apply a thin coating of food-grade silicone lubricant before reinstalling the housing.
• Avoid using petroleum-based lubricants, as they can damage the rubber.

💡 Replacing the O-ring regularly is an inexpensive way to prevent leaks and extend the life of your filter housing.

Why Replace Your Filter Housing O-Ring?

A worn or damaged O-ring is one of the most common causes of leaking water filter housings. Replacing it during routine filter maintenance helps ensure a reliable seal, protects your filtration system, and keeps your home free from unnecessary water leaks.