Inline GAC T33 carbon filter, NSF Certified, Made in USA, 1/4″ & 3/8″ OD Tubing Connections (SKU# CL10ROT33-B)
$14.00
Inline GAC T28 carbon filter, NSF Certified, Made in USA, SKU# CL10ROT33-B
- Description
- Additional information
- Reviews (2)
Description
Inline GAC T33 Carbon Filter – NSF 42 Certified (Made in USA by Omnipure)
The Omnipure GAC T33 Inline Carbon Filter is a premium granular activated carbon filter designed for post-filtration applications in reverse osmosis (RO) systems. NSF 42 Certified and made in the USA, this filter provides exceptional performance in reducing chlorine, chloramine, and a broad range of chemical contaminants—delivering clean, fresh-tasting water in every drop.
✅ Key Features:
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Purpose: Effectively removes chlorine, chloramine, aluminum, cyanide, nitrates, VOCs, cysts, pesticides, and other harmful substances
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Taste & Odor: Improves the overall taste and smell of water
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NSF 42 Certified: Tested for material safety and chlorine reduction
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Versatile Use: Commonly used as a final stage in RO systems, as well as in refrigerators, ice makers, water coolers, and under-sink filters
🔧 Specifications:
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Model: Inline GAC T33 Carbon Filter
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Made By: Omnipure (USA)
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Connection Type: 1/4″ FPT (Female Pipe Thread)
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Includes: 2 x Quick-Connect Elbows (1/4″ thread)
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Filter Media: Granular Activated Carbon (GAC)
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Micron Rating (Nominal): None
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Flow Rate: 0.50 GPM
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Max Pressure: 125 PSI
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Operating Temperature: 36°F – 100°F
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Capacity: 1,500 gallons or 6–12 months (depending on water quality and usage)
📦 Applications:
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Final stage filter in RO systems
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Inline filter for refrigerators and ice makers
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Use in water coolers and under-sink water filters
Enjoy crisp, clean, and great-tasting water with the trusted quality of Omnipure’s American-made inline carbon filters. Ideal for both home and commercial use.
Let me know if you’d like matching product images, icons, or a comparison chart for similar filters.
Installation Tips
Tubing & Quick-Connect Notes
- Common RO tubing sizes are 1/4″ OD and 3/8″ OD.
- Cut tubing with a clean, straight 90° cut for the best seal.
- Push tubing fully into the fitting until it stops, then pull back gently to confirm it locks.
Important Use Notes
- Use with cold water only.
- For best performance, install as the final stage after the RO membrane.
Not Sure Which Option to Choose?
- If unsure, select Universal Fit (includes 4 elbow adapters for 1/4″ & 3/8″ OD Tubing Connection)
- Message us before ordering—we’ll 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.
- Search YouTube for “inline RO filter installation”
- Choose a video that matches your system type (under-sink RO, countertop RO, post-filter installation, etc.)
Visual step-by-step videos can make installation easier and faster.
Additional information
| Weight | 12 oz |
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| Dimensions | 11 × 2 × 2 in |






Henry Kendrik –
I installed this Inline T33 filter after my RO system, and the difference is amazing. The water tastes noticeably smoother—no more chlorine or plastic-like aftertaste. I also added it to my fridge line, and the ice cubes now taste crisp and pure. The quick-connect fittings made installation a breeze. Definitely a must-have for anyone who cares about water quality!
Noah –
This filter does exactly what it promises—chlorine and odor gone, no weird flavor. I’ve had it installed for eight months and it’s still performing well. Only reason for 4 stars instead of 5 is the price; it’s a bit more expensive than generic brands, but the NSF certification and U.S. manufacturing give me confidence that it’s worth it.