Description
Inline GAC T28 Carbon Filter – NSF/ANSI 42 Certified
Made in USA by Omnipure
The Inline GAC T28 Carbon Filter is designed to reduce chlorine and chloramine while improving
taste and odor in drinking water. Filled with high-quality granular activated carbon (GAC),
this filter provides effective adsorption performance for residential and specialty water filtration
applications.
This filter is commonly used as the second stage in countertop reverse osmosis (RO) systems
and is also suitable for refrigerators and other point-of-use water filtration systems.
Purpose
- Helps reduce chlorine and chloramine
- Reduces aluminum, cyanide, and nitrates
- Helps reduce cysts, pesticides, and VOCs
- Improves water taste and odor
Key Features
- NSF/ANSI 42 Certified
- Manufactured in the USA by Omnipure
- Premium granular activated carbon (GAC)
- Inline sealed housing for consistent performance
- Easy installation with standard RO tubing
Applications
- Countertop reverse osmosis systems (second stage)
- Refrigerator water filtration systems
- Point-of-use water filters
- Specialty home filtration setups
Included
- Inline GAC T28 carbon filter
- 2 quick-connect elbow adapters (1/4″ thread)
Specifications
- Filter Type: Inline Granular Activated Carbon (T28)
- Connection: 1/4″ FPT
- Flow Rate: 0.50 GPM
- Capacity: 1,500 gallons or 6–12 months
- Operating Temperature: 36°F – 100°F
- Max Pressure: 125 PSI
- Micron Rating (Nominal): Not rated
SKU
🔧Installation Tips
Tubing Size
- Most RO systems use 1/4″ OD tubing (standard RO size).
- Some countertop RO systems and specialty setups use 3/8″ OD tubing.
- Tubing size refers to the outside diameter (OD) of the tube.
When Do You Need Elbow Adapters?
- Select 3/8″ OD Tubing if your system uses larger tubing.
- We include 2 elbow adapters to connect the inline filter to 3/8″ OD tubing.
✔ No tools required
✔ Push-to-connect installation
When Do You Need a T-Fitting?
A T-fitting (1/4″ stem x 1/4″ OD Tubing x 1/4″ OD Tubing) is helpful if you are:
- Adding the inline filter to an existing 1/4″ RO line
- Want an easier install with a clean branch connection
- Installing between tubing lines without reworking your layout
✔ Optional accessory
✔ Makes installation easier for some setups
Not Sure Which Option to Choose?
- If unsure, select 1/4″ OD Tubing (Standard RO).
- Message us before ordering—we’re happy to help you pick the right fittings.
▶️ Video Installation Guidance
Because RO systems and plumbing layouts can vary, there are multiple valid ways to install an inline filter.
If you are unsure about your setup, we recommend:
- Searching YouTube for “inline RO filter installation”
- Watching a video that best matches your system type
(under-sink RO, countertop RO, post-filter installation, etc.)
Visual step-by-step videos can be very helpful and often make installation easier and faster.
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